JavaScript/jQuery Gantt Options
See Also
- Configure a Widget: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
accessKey
The value of this option will be passed to the accesskey
attribute of the HTML element that underlies the widget.
allowSelection
jQuery
$(function() { $("#gantt").dxGantt({ allowSelection: false, // ... }); });
See Also
columns
The columns option accepts an array of columns. To configure a column, use a dxTreeListColumn object or specify a data source field (as a string value) to which the column is bound.
jQuery
$(function() { $("#gantt").dxGantt({ columns: [{ dataField: "title", caption: "Subject", width: 300 }, { dataField: "start", caption: "Start Date" }, "end" ], // ... }); });
dependencies
Dependencies specify the relationships between tasks. The following image illustrates how the Gantt displays dependencies in the chart:
The Gantt widget supports the following dependency types:
Finish to Start (FS) - The predecessor task's endpoint specifies the successor task's start point.
Start to Start (SS) - The predecessor task's start point specifies the successor task's start point.
Finish to Finish (FF) - The predecessor task's end point specifies the successor task's end point.
Start to Finish (SF) - The predecessor task's start point specifies the successor task's end point.
Use the dataSource option to bind the widget to a data source, which contains information about dependency types. If the field names in your data source differ from the 'id', 'type', 'predecessorId' and 'successorId' default names, use the keyExpr, typeExpr options to map data fields.
See Also
jQuery
$(function() { $("#gantt").dxGantt({ dependencies: { dataSource: dependencies, keyExpr: "dependencyId", typeExpr: "dependencyType", predecessorIdExpr: "taskPredecessorId", successorIdExpr: "taskSuccessorId" }, //... }); });
var dependencies = [{ 'dependencyId': 0, 'taskPredecessorId': 1, 'taskSuccessorId': 2, 'dependencyType': 0 }, // ... ];
Angular
<dx-gantt ... > <dxo-dependencies [dataSource]="dependencies" keyExpr="dependencyId" typeExpr="dependencyType" predecessorIdExpr="taskPredecessorId" successorIdExpr="taskSuccessorId" > </dxo-dependencies> <!-- ... --> </dx-gantt>
import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { dependencies: Dependency[]; // ... constructor(service: Service) { this.dependencies = service.getDependencies(); // ... } }
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; import { Service, Dependency, ... } from './app.service'; @NgModule({ imports: [ BrowserModule, DxGanttModule ], declarations: [AppComponent], providers: [Service], bootstrap: [AppComponent] }) export class AppModule { }
import { Injectable } from '@angular/core'; export class Dependency { dependencyId: number; taskPredecessorId: number; taskSuccessorId: number; dependencyType: number; } let dependencies: Dependency[] = [{ 'dependencyId': 0, 'taskPredecessorId': 1, 'taskSuccessorId': 2, 'dependencyType': 0 }, // ... ]; @Injectable() export class Service { getDependencies(): Dependency[] { return dependencies; } }
Vue
<template> <DxGantt ... > <DxDependencies :data-source="dependencies" key-expr="dependencyId" type-expr="dependencyType" predecessor-id-expr="taskPredecessorId" successor-id-expr="taskSuccessorId" /> <!-- ... --> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import { DxGantt, DxDependencies, // ... } from 'devextreme-vue/gantt'; import { dependencies, // ... } from './data.js'; export default { components: { DxGantt, DxDependencies, // ... }, data() { return { dependencies, // ... }; } }; </script>
export const dependencies = [{ 'dependencyId': 0, 'taskPredecessorId': 1, 'taskSuccessorId': 2, 'dependencyType': 0 }, // ... ];
React
import React from 'react'; import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import Gantt, { Dependencies, // ... } from 'devextreme-react/gantt'; import { dependencies, // ... } from './data.js'; class App extends React.Component { render() { return ( <Gantt ... > <Dependencies dataSource={dependencies} keyExpr="dependencyId" typeExpr="dependencyType" predecessorIdExpr="taskPredecessorId" successorIdExpr="taskSuccessorId" /> {/* ... */} </Gantt> ); } } export default App;
export const dependencies = [{ 'dependencyId': 0, 'taskPredecessorId': 1, 'taskSuccessorId': 2, 'dependencyType': 0 }, // ... ];
editing
The widget allows users to add, modify and delete tasks, resources and dependencies. Set the enabled option to true to enable edit functionality.
jQuery
$(function() { $("#gantt").dxGantt({ editing: { //... } }); });
elementAttr
Specifies the attributes to be attached to the widget's root element.
jQuery
$(function(){ $("#ganttContainer").dxGantt({ // ... elementAttr: { id: "elementId", class: "class-name" } }); });
Angular
<dx-gantt ... [elementAttr]="{ id: 'elementId', class: 'class-name' }"> </dx-gantt>
import { DxGanttModule } from "devextreme-angular"; // ... export class AppComponent { // ... } @NgModule({ imports: [ // ... DxGanttModule ], // ... })
Vue
<template> <DxGantt ... :element-attr="ganttAttributes"> </DxGantt> </template> <script> import DxGantt from 'devextreme-vue/gantt'; export default { components: { DxGantt }, data() { return { ganttAttributes: { id: 'elementId', class: 'class-name' } } } } </script>
React
import React from 'react'; import Gantt from 'devextreme-react/gantt'; class App extends React.Component { ganttAttributes = { id: 'elementId', class: 'class-name' } render() { return ( <Gantt ... elementAttr={this.ganttAttributes}> </Gantt> ); } } export default App;
height
This option accepts a value of one of the following types:
Number
The height in pixels.String
A CSS-accepted measurement of height. For example,"55px"
,"80%"
,"inherit"
.Function
A function returning either of the above. For example:JavaScriptheight: function() { return window.innerHeight / 1.5; }
onContentReady
A function that is executed when the widget's content is ready and each time the content is changed.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
Model data. Available only when using Knockout. |
onDisposing
A function that is executed before the widget is disposed of.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
Model data. Available only if you use Knockout. |
onInitialized
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
onOptionChanged
Name | Type | Description |
---|---|---|
model |
Model data. Available only if you use Knockout. |
|
fullName |
The path to the modified option that includes all parent options. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
component |
The widget's instance. |
|
name |
The modified option if it belongs to the first level. Otherwise, the first-level option it is nested into. |
|
value | any |
The modified option's new value. |
onSelectionChanged
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
Model data. Available only if you use Knockout. |
|
selectedRowKey | any |
The key of the row whose selection state was changed. |
jQuery
$(function() { $("#gantt").dxGantt({ // ... onSelectionChanged: function (e) { if (e.selectedRowKey === 2) { // your code } else { // your code } } }); });
See Also
resourceAssignments
Resource assignments define relationship between tasks and resources.
Use the dataSource option to bind the widget to a data source, which contains resource assignments. If the field names in your data source differ from the 'id', 'resourceId' and 'taskId' default names, use the keyExpr, resourceIdExpr and/or taskIdExpr options to map data fields.
See Also
jQuery
$(function() { $("#gantt").dxGantt({ resourceAssignments: { dataSource: resourceAssignments, keyExpr: "key", resourceIdExpr: "resourceKey", taskIdExpr: "taskKey" }, //... }); });
var resourceAssignments = [{ 'key': 0, 'taskKey': 3, 'resourceKey': 1 }, // ... ];
Angular
<dx-gantt ... > <dxo-resource-assignments [dataSource]="resourceAssignments" keyExpr="key" resourceIdExpr="resourceKey" taskIdExpr="taskKey"> </dxo-resource-assignments> <!-- ... --> </dx-gantt>
import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { resourceAssignments: ResourceAssignment[]; // ... constructor(service: Service) { this.resourceAssignments = service.getResourceAssignments(); // ... } }
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; import { Service, ResourceAssignment, ... } from './app.service'; @NgModule({ imports: [ BrowserModule, DxGanttModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { }
import { Injectable } from '@angular/core'; export class ResourceAssignment { id: number; taskId: number; resourceId: number; } const resourceAssignments: ResourceAssignment[] = [{ 'key': 0, 'taskKey': 3, 'resourceKey': 1 }, // ... ]; @Injectable() export class Service { getResourceAssignments(): ResourceAssignment[] { return resourceAssignments; } }
Vue
<template> <DxGantt ... > <DxResourceAssignments :data-source="resourceAssignments" key-expr="key" resource-id-expr="resourceKey" task-id-expr="taskKey" /> <!-- ... --> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import { DxGantt, DxResourceAssignments, //... } from 'devextreme-vue/gantt'; import { resourceAssignments, // ... } from './data.js'; export default { components: { DxGantt, DxResourceAssignments, //... }, data() { return { resourceAssignments, //... }; } }; </script>
export const resourceAssignments = [{ 'key': 0, 'taskKey': 3, 'resourceKey': 1 }, // ... ];
React
import React from 'react'; import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import Gantt, { ResourceAssignments, //... } from 'devextreme-react/gantt'; import { resourceAssignments, //... } from './data.js'; class App extends React.Component { render() { return ( <Gantt ... > <ResourceAssignments dataSource={resourceAssignments} keyExpr="key" resourceIdExpr="resourceKey" taskIdExpr="taskKey" /> </Gantt> ); } } export default App;
export const resourceAssignments = [{ 'key': 0, 'taskKey': 3, 'resourceKey': 1 }, // ... ];
resources
You can add resources to a project and assign them to tasks. Resources can be people responsible for tasks, equipment, materials, etc. The Gantt displays resources as labels on the right of the tasks.
Use the dataSource option to bind the widget to a data source, which contains resources. If the field names in your data source differ from the 'id' and 'text' default names, use the keyExpr and/or textExpr options to map data fields.
See Also
jQuery
$(function() { $("#gantt").dxGantt({ resources: { dataSource: resources, keyExpr: "resourceId", textExpr: "title" }, //... }); });
var resources = [{ 'resourceId': 1, 'title': 'Management' }, // ... ];
Angular
<dx-gantt ... > <dxo-resources [dataSource]="resources" keyExpr="resourceId" textExpr="title"> </dxo-resources> <!-- ... --> </dx-gantt>
import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { resources: Resource[]; // ... constructor(service: Service) { this.resources = service.getResources(); // ... } }
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; import { Service, Resource, ... } from './app.service'; @NgModule({ imports: [ BrowserModule, DxGanttModule ], providers: [Service], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { }
import { Injectable } from '@angular/core'; export class Resource { id: number; text: string; } const resources: Resource[] = [{ 'resourceId': 1, 'title': 'Management' }, // ... ]; @Injectable() export class Service { getResources(): Resource[] { return resources; } }
Vue
<template> <DxGantt ... > <DxResources :data-source="resources" key-expr="resourceId" text-expr="title" /> <!-- ... --> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import { DxGantt, DxResources, // ... } from 'devextreme-vue/gantt'; import { resources, // ... } from './data.js'; export default { components: { DxGantt, DxResources, // ... }, data() { return { resources, // ... }; } }; </script>
export const resources = [{ 'resourceId': 1, 'title': 'Management' }, // ... ];
React
import React from 'react'; import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import Gantt, { Resources, // ... } from 'devextreme-react/gantt'; import { resources, // ... } from './data.js'; class App extends React.Component { render() { return ( <Gantt ... > <Resources dataSource={resources} keyExpr="resourceId" textExpr="title" /> {/* ... */} </Gantt> ); } } export default App;
export const resources = [{ 'resourceId': 1, 'title': 'Management' }, // ... ];
scaleType
The scaleType option specifies the zoom level for tasks when the Gantt widget is initialized or when you call the option() method.
jQuery
$(function() { $("#gantt").dxGantt({ scaleType: 'hours', // ... }); });
If the scaleType option is set to "auto", the widget is scaled to fit all tasks in the Gantt chart's visible area.
To browse tasks across various levels of detail in real time, hold the CTRL key and scroll the mouse wheel to zoom (in or out).
selectedRowKey
jQuery
$(function() { $("#gantt").dxGantt({ selectedRowKey: 1, // ... }); });
See Also
showResources
Specifies whether to display task resources.
jQuery
$(function() { $("#gantt").dxGantt({ showResources: false, // ... }); });
tabIndex
The value of this option will be passed to the tabindex
attribute of the HTML element that underlies the widget.
tasks
Use the dataSource option to bind the widget to a data source, which contains tasks. If the field names in your data source differ from default names ('id', 'parentId', 'title', 'start', 'end', 'progress'), use appropriate options (keyExpr, parentIdExpr, etc.) to map data fields.
See Also
jQuery
$(function() { $("#gantt").dxGantt({ tasks: { dataSource: tasks, keyExpr: "taskId", parentIdExpr: "parentTaskId", titleExpr: "taskTitle", progressExpr: "taskProgress", startExpr: "startDate", endExpr: "endDate" }, //... }); });
var tasks = [{ 'taskId': 1, 'parentTaskId': 0, 'taskTitle': 'Software Development', 'startDate': new Date('2019-02-21T05:00:00.000Z'), 'endDate': new Date('2019-07-04T12:00:00.000Z'), 'taskProgress': 31 }, // ... ];
Angular
<dx-gantt ... > <dxo-tasks [dataSource]="tasks" keyExpr="taskId" parentIdExpr="parentTaskId" titleExpr="taskTitle" progressExpr="taskProgress" startExpr="startDate" endExpr="endDate" > </dxo-tasks> <!-- ... --> </dx-gantt>
import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { tasks: Task[]; // ... constructor(service: Service) { this.tasks = service.getTasks(); // ... } }
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxGanttModule } from 'devextreme-angular'; import { Service, Task, ... } from './app.service'; @NgModule({ imports: [ BrowserModule, DxGanttModule ], providers: [Service], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { }
import { Injectable } from '@angular/core'; export class Task { taskId: number; parentTaskId: number; taskTitle: string; startDate: Date; endDate: Date; taskProgress: number; } const tasks: Task[] = [{ 'taskId': 1, 'parentTaskId': 0, 'taskTitle': 'Software Development', 'startDate': new Date('2019-02-21T05:00:00.000Z'), 'endDate': new Date('2019-07-04T12:00:00.000Z'), 'taskProgress': 31 }, // ... ]; @Injectable() export class Service { getTasks(): Task[] { return tasks; } }
Vue
<template> <DxGantt ... > <DxTasks :data-source="tasks" key-expr="taskId" parent-id-expr="parentTaskId" title-expr="taskTitle" progress-expr="taskProgress" start-expr="startDate" end-expr="endDate" /> <!-- ... --> </DxGantt> </template> <script> import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import { DxGantt, DxTasks, // ... } from 'devextreme-vue/gantt'; import { tasks, // ... } from './data.js'; export default { components: { DxGantt, DxTasks, // ... }, data() { return { tasks, // ... }; } }; </script>
export const tasks = [{ 'taskId': 1, 'parentTaskId': 0, 'taskTitle': 'Software Development', 'startDate': new Date('2019-02-21T05:00:00.000Z'), 'endDate': new Date('2019-07-04T12:00:00.000Z'), 'taskProgress': 31 }, // ... ];
React
import React from 'react'; import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import Gantt, { Tasks, // ... } from 'devextreme-react/gantt'; import { tasks, // ... } from './data.js'; class App extends React.Component { render() { return ( <Gantt ... > <Tasks dataSource={tasks} keyExpr="taskId" parentIdExpr="parentTaskId" titleExpr="taskTitle" progressExpr="taskProgress" startExpr="startDate" endExpr="endDate" /> {/* ... */} </Gantt> ); } } export default App;
export const tasks = [{ 'taskId': 1, 'parentTaskId': 0, 'taskTitle': 'Software Development', 'startDate': new Date('2019-02-21T05:00:00.000Z'), 'endDate': new Date('2019-07-04T12:00:00.000Z'), 'taskProgress': 31 }, // ... ];
width
This option accepts a value of one of the following types:
Number
The width in pixels.String
A CSS-accepted measurement of width. For example,"55px"
,"80%"
,"auto"
,"inherit"
.Function
A function returning either of the above. For example:JavaScriptwidth: function() { return window.innerWidth / 1.5; }
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