React Gantt Methods
This section describes methods that control the Gantt UI component.
assignResourceToTask(resourceKey, taskKey)
Assigns a resource to a task.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); gantt.assignResourceToTask("resource_key","task_key");
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.assignResourceToTask("resource_key","task_key"); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.assignResourceToTask("resource_key","task_key"); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.assignResourceToTask("resource_key","task_key"); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.assignResourceToTask("resource_key","task_key"); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.assignResourceToTask("resource_key","task_key"); // ... } </script>
See Also
beginUpdate()
Prevents the UI component from refreshing until the endUpdate() method is called.
The beginUpdate() and endUpdate() methods prevent the UI component from excessive updates when you are changing multiple UI component settings at once. After the beginUpdate() method is called, the UI component does not update its UI until the endUpdate() method is called.
See Also
defaultOptions(rule)
Specifies the device-dependent default configuration properties for this component.
The component's default device properties.
defaultOptions is a static method that the UI component class supports. The following code demonstrates how to specify default properties for all instances of the Gantt UI component in an application executed on the desktop.
jQuery
DevExpress.ui.dxGantt.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the Gantt properties } });
Angular
import Gantt from "devextreme/ui/gantt"; // ... export class AppComponent { constructor () { Gantt.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the Gantt properties } }); } }
Vue
<template> <div> <DxGantt id="gantt1" /> <DxGantt id="gantt2" /> </div> </template> <script> import DxGantt from "devextreme-vue/gantt"; import Gantt from "devextreme/ui/gantt"; Gantt.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the Gantt properties } }); export default { components: { DxGantt } } </script>
React
import React, {useEffect} from "react"; import dxGantt from "devextreme/ui/gantt"; import Gantt from "devextreme-react/gantt"; export default function App() { useEffect(() => { dxGantt.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the Gantt properties } }) }); return ( <div> <Gantt id="gantt1" /> <Gantt id="gantt2" /> </div> ) }
deleteDependency(key)
Deletes a dependency.
The dependency key.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); gantt.deleteDependency("dependency_key");
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.deleteDependency("dependency_key"); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.deleteDependency("dependency_key"); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.deleteDependency("dependency_key"); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.deleteDependency("dependency_key"); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.deleteDependency("dependency_key"); // ... } </script>
See Also
deleteResource(key)
Deletes a resource.
The resource key.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); gantt.deleteResource("resource_key");
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.deleteResource("resource_key"); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.deleteResource("resource_key"); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.deleteResource("resource_key"); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.deleteResource("resource_key"); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.deleteResource("resource_key"); // ... } </script>
See Also
deleteTask(key)
Deletes a task.
The task key.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); gantt.deleteTask("task_key");
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.deleteTask("task_key"); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.deleteTask("task_key"); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.deleteTask("task_key"); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.deleteTask("task_key"); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.deleteTask("task_key"); // ... } </script>
See Also
dispose()
Disposes of all the resources allocated to the Gantt instance.
After calling this method, remove the DOM element associated with the UI component:
$("#myGantt").dxGantt("dispose"); $("#myGantt").remove();
Use this method only if the UI component was created with jQuery or pure JavaScript. In Angular, Vue, and React, use conditional rendering:
Angular
<dx-gantt ... *ngIf="condition"> </dx-gantt>
Vue
<template> <DxGantt ... v-if="condition"> </DxGantt> </template> <script> import DxGantt from 'devextreme-vue/gantt'; export default { components: { DxGantt } } </script>
React
import React from 'react'; import Gantt from 'devextreme-react/gantt'; function DxGantt(props) { if (!props.shouldRender) { return null; } return ( <Gantt ... > </Gantt> ); } class App extends React.Component { render() { return ( <DxGantt shouldRender="condition" /> ); } } export default App;
See Also
element()
Gets the root UI component element.
An HTML element or a jQuery element when you use jQuery.
getDependencyData(key)
Gets the dependency data.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); gantt.getDependencyData("dependency_key");
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.getDependencyData("dependency_key"); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.getDependencyData("dependency_key"); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.getDependencyData("dependency_key"); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getDependencyData("dependency_key"); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getDependencyData("dependency_key"); // ... } </script>
See Also
getInstance(element)
Gets the instance of a UI component found using its DOM node.
The UI component's instance.
getInstance is a static method that the UI component class supports. The following code demonstrates how to get the Gantt instance found in an element with the myGantt
ID:
// Modular approach import Gantt from "devextreme/ui/gantt"; ... let element = document.getElementById("myGantt"); let instance = Gantt.getInstance(element) as Gantt; // Non-modular approach let element = document.getElementById("myGantt"); let instance = DevExpress.ui.dxGantt.getInstance(element);
See Also
getResourceAssignmentData(key)
Gets the resource assignment data.
The resource assignment key.
The resource assignment data.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); gantt.getResourceAssignmentData("res_assignment_key");
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.getResourceAssignmentData("res_assignment_key"); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.getResourceAssignmentData("res_assignment_key"); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.getResourceAssignmentData("res_assignment_key"); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getResourceAssignmentData("res_assignment_key"); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getResourceAssignmentData("res_assignment_key"); // ... } </script>
See Also
getResourceData(key)
Gets the resource data.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); gantt.getResourceData("resource_key");
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.getResourceData("resource_key"); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.getResourceData("resource_key"); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.getResourceData("resource_key"); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getResourceData("resource_key"); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getResourceData("resource_key"); // ... } </script>
See Also
getTaskData(key)
Gets the task data.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); gantt.getTaskData("task_key");
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.getTaskData("task_key"); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.getTaskData("task_key"); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.getTaskData("task_key"); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getTaskData("task_key"); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getTaskData("task_key"); // ... } </script>
See Also
getTaskResources(key)
Gets resources assigned to a task.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); //... gantt.getTaskResources("task_key");
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.getTaskResources("task_key"); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.getTaskResources("task_key"); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.getTaskResources("task_key"); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getTaskResources("task_key"); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getTaskResources("task_key"); // ... } </script>
See Also
getVisibleDependencyKeys()
Gets the keys of the visible dependencies.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); //... var keys = gantt.getVisibleDependencyKeys();
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.getVisibleDependencyKeys(); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.getVisibleDependencyKeys(); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.getVisibleDependencyKeys(); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getVisibleDependencyKeys(); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getVisibleDependencyKeys(); // ... } </script>
See Also
getVisibleResourceAssignmentKeys()
Gets the keys of the visible resource assignments.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); //... var keys = gantt.getVisibleResourceAssignmentKeys();
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.getVisibleResourceAssignmentKeys(); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.getVisibleResourceAssignmentKeys(); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.getVisibleResourceAssignmentKeys(); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getVisibleResourceAssignmentKeys(); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getVisibleResourceAssignmentKeys(); // ... } </script>
See Also
getVisibleResourceKeys()
Gets the keys of the visible resources.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); //... var keys = gantt.getVisibleResourceKeys();
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.getVisibleResourceKeys(); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.getVisibleResourceKeys(); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.getVisibleResourceKeys(); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getVisibleResourceKeys(); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getVisibleResourceKeys(); // ... } </script>
See Also
getVisibleTaskKeys()
Gets the keys of the visible tasks.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); //... var keys = gantt.getVisibleTaskKeys();
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.getVisibleTaskKeys(); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.getVisibleTaskKeys(); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.getVisibleTaskKeys(); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getVisibleTaskKeys(); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.getVisibleTaskKeys(); // ... } </script>
See Also
insertDependency(data)
Inserts a new dependency.
The dependency data.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); gantt.insertDependency({ predecessorId: 1, successorId: 3, type: 3 });
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.insertDependency({ predecessorId: 1, successorId: 3, type: 3 }); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.insertDependency({ predecessorId: 1, successorId: 3, type: 3 }); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.insertDependency({ predecessorId: 1, successorId: 3, type: 3 }); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.insertDependency({ predecessorId: 1, successorId: 3, type: 3 }); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.insertDependency({ predecessorId: 1, successorId: 3, type: 3 }); // ... } </script>
See Also
insertResource(data, taskKeys)
Inserts a new resource.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); // Inserts a new resource gantt.insertResource({ text: "New Resource" }); // Inserts a new resource and assigns it to an individual task gantt.insertResource({ text: "New Resource" }, [6]); // Inserts a new resource and assigns it to multiple tasks gantt.insertResource({ text: "New Resource" }, [6,8]);
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { // Inserts a new resource this.gantt.instance.insertResource({ text: "New Resource" }); // Inserts a new resource and assigns it to an individual task this.gantt.instance.insertResource({ text: "New Resource" }, [6]); // Inserts a new resource and assigns it to multiple tasks this.gantt.instance.insertResource({ text: "New Resource" }, [6,8]); } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ // Inserts a new resource this.gantt.insertResource({ text: "New Resource" }); // Inserts a new resource and assigns it to an individual task this.gantt.insertResource({ text: "New Resource" }, [6]); // Inserts a new resource and assigns it to multiple tasks this.gantt.insertResource({ text: "New Resource" }, [6,8]); } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { // Inserts a new resource this.gantt.insertResource({ text: "New Resource" }); // Inserts a new resource and assigns it to an individual task this.gantt.insertResource({ text: "New Resource" }, [6]); // Inserts a new resource and assigns it to multiple tasks this.gantt.insertResource({ text: "New Resource" }, [6,8]); } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); // Inserts a new resource ganttInstance.insertResource({ text: "New Resource" }); // Inserts a new resource and assigns it to an individual task ganttInstance.insertResource({ text: "New Resource" }, [6]); // Inserts a new resource and assigns it to multiple tasks ganttInstance.insertResource({ text: "New Resource" }, [6,8]); } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); // Inserts a new resource ganttInstance.insertResource({ text: "New Resource" }); // Inserts a new resource and assigns it to an individual task ganttInstance.insertResource({ text: "New Resource" }, [6]); // Inserts a new resource and assigns it to multiple tasks ganttInstance.insertResource({ text: "New Resource" }, [6,8]); } </script>
See Also
insertTask(data)
Inserts a new task.
The task data.
The insertTask method does not update the following data fields in the data source:
Key value fields.
Fields that are not assigned to the Gantt's columns.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); // Inserts a new task with the specified subject at the end of the other tasks. gantt.insertTask({ title: "New Task" }); // Inserts a child task with the specified subject as a child of the task with ID = 2 gantt.insertTask({ title: "New Task" , parentId: 2});
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { // Inserts a new task with the specified subject at the end of the other tasks. this.gantt.instance.insertTask({ title: "New Task" }); // Inserts a child task with the specified subject as a child of the task with ID = 2 this.gantt.instance.insertTask({ title: "New Task" , parentId: 2}); } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ // Inserts a new task with the specified subject at the end of the other tasks. this.gantt.insertTask({ title: "New Task" }); // Inserts a child task with the specified subject as a child of the task with ID = 2 this.gantt.insertTask({ title: "New Task" , parentId: 2}); } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { // Inserts a new task with the specified subject at the end of the other tasks. this.gantt.insertTask({ title: "New Task" }); // Inserts a child task with the specified subject as a child of the task with ID = 2 this.gantt.insertTask({ title: "New Task" , parentId: 2}); } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); // Inserts a new task with the specified subject at the end of the other tasks. ganttInstance.insertTask({ title: "New Task" }); // Inserts a child task with the specified subject as a child of the task with ID = 2 ganttInstance.insertTask({ title: "New Task" , parentId: 2}); } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); // Inserts a new task with the specified subject at the end of the other tasks. ganttInstance.insertTask({ title: "New Task" }); // Inserts a child task with the specified subject as a child of the task with ID = 2 ganttInstance.insertTask({ title: "New Task" , parentId: 2}); } </script>
See Also
instance()
Gets the UI component's instance. Use it to access other methods of the UI component.
This UI component's instance.
off(eventName)
Detaches all event handlers from a single event.
The event's name.
The object for which this method is called.
off(eventName, eventHandler)
Detaches a particular event handler from a single event.
The object for which this method is called.
on(eventName, eventHandler)
Subscribes to an event.
The object for which this method is called.
on(events)
Subscribes to events.
Events with their handlers: { "eventName1": handler1, "eventName2": handler2, ...}
The object for which this method is called.
option(optionName)
Gets the value of a single property.
The property's name or full path.
This property's value.
option(options)
Updates the values of several properties.
Options with their new values.
registerKeyHandler(key, handler)
Registers a handler to be executed when a user presses a specific key.
A key.
A handler. Accepts the keydown event as the argument. It is a dxEvent or a jQuery.Event when you use jQuery.
The key argument accepts one of the following values:
- "backspace"
- "tab"
- "enter"
- "escape"
- "pageUp"
- "pageDown"
- "end"
- "home"
- "leftArrow"
- "upArrow"
- "rightArrow"
- "downArrow"
- "del"
- "space"
- "F"
- "A"
- "asterisk"
- "minus"
A custom handler for a key cancels the default handler for this key.
See Also
repaint()
Repaints the UI component without reloading data. Call it to update the UI component's markup.
resetOption(optionName)
Resets a property to its default value.
A property's name.
unassignResourceFromTask(resourceKey, taskKey)
Removes a resource from the task.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); gantt.unassignResourceFromTask(3, 10);
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.unassignResourceFromTask(3, 10); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.unassignResourceFromTask(3, 10); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.unassignResourceFromTask(3, 10); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.unassignResourceFromTask(3, 10); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.unassignResourceFromTask(3, 10); // ... } </script>
See Also
updateTask(key, data)
Updates the task data.
Note that the updateTask method does not allow you to change a task's parent task.
jQuery
var gantt = $("#ganttContainer").dxGantt("instance"); gantt.updateTask(3, {title: "New Title"});
Angular
import { Component, ViewChild } from '@angular/core'; import { DxGanttComponent } from "devextreme-angular"; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { @ViewChild(DxGanttComponent, { static: false }) gantt: DxGanttComponent; // Prior to Angular 8 // @ViewChild(DxGanttComponent) gantt: DxGanttComponent; yourCustomMethod() { this.gantt.instance.updateTask(3, {title: "New Title"}); // ... } }
<dx-gantt ... > </dx-gantt>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxGanttModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
<template> <DxGantt ... :ref="ganttRef"> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.light.css'; import 'devexpress-gantt/dist/dx-gantt.css'; import DxGantt from 'devextreme-vue/gantt'; const ganttRef = 'gantt'; export default { components: { DxGantt }, data() { return { ganttRef } }, computed: { gantt: function() { return this.$refs[ganttRef].instance; } }, methods: { yourCustomMethod(){ this.gantt.updateTask(3, {title: "New Title"}); // ... } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { constructor(props) { super(props); this.ganttRef = React.createRef(); this.yourCustomMethod = () => { this.gantt.updateTask(3, {title: "New Title"}); // ... } } get gantt() { return this.ganttRef.current.instance; } render() { return ( <Gantt ... ref={this.ganttRef}> </Gantt> ); } } export default App;
ASP.NET Core Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.updateTask(3, {title: "New Title"}); // ... } </script>
ASP.NET MVC Controls
@(Html.DevExtreme().Gantt() .ID("gantt") @* ... *@ ) <script type="text/javascript"> function getGanttInstance() { return $("#gantt").dxGantt("instance"); } function yourCustomMethod() { var ganttInstance = getGanttInstance(); ganttInstance.updateTask(3, {title: "New Title"}); // ... } </script>
See Also
If you have technical questions, please create a support ticket in the DevExpress Support Center.