Help us shape the 2021 DevExtreme Roadmap.
Take our 5 minute survey.
Focused Row
Documentation
This example demonstrates a TreeList UI component that supports focused rows. The focusedRowKey property specifies the focused row. The onFocusedRowChanged callback function can be used to display additional information below the TreeList when the focused row changes. The focusedRowEnabled property enables row focusing.
Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
Thank you!
We appreciate your feedback.
We appreciate your feedback.
<dx-tree-list
id="treeList"
[dataSource]="dataSource"
parentIdExpr="Task_Parent_ID"
wordWrapEnabled="true"
showBorders="true"
focusedRowEnabled="true"
hasItemsExpr="Has_Items"
[(focusedRowKey)]="focusedRowKey"
(onFocusedRowChanged)="onFocusedRowChanged($event)">
<dxo-remote-operations [filtering]="true" [sorting]="true" [grouping]="true"></dxo-remote-operations>
<dxi-column dataField="Task_ID" width="100" alignment="left"></dxi-column>
<dxi-column dataField="Task_Assigned_Employee_ID" caption="Assigned" minWidth="120">
<dxo-lookup [dataSource]="taskEmployees" valueExpr="ID" displayExpr="Name"></dxo-lookup>
</dxi-column>
<dxi-column dataField="Task_Status" caption="Status" width=160></dxi-column>
<dxi-column dataField="Task_Start_Date" caption="Start Data" dataType="date" width=160></dxi-column>
<dxi-column dataField="Task_Due_Date" caption="Due Data" dataType="date" width=160></dxi-column>
</dx-tree-list>
<div class="task-info">
<div class="info">
<div class="task-subject">{{taskSubject}}</div>
<span class="task-assigned">{{taskAssigned}}</span>
<span class="start-date">{{startDate}}</span>
</div>
<div class="progress">
<span class="task-status">{{taskStatus}}</span>
<span class="task-progress">{{taskProgress}}</span>
</div>
</div>
<div class="options">
<div class="caption">Options</div>
<div class="option">
<span>Focused row key</span>
<dx-number-box
id="taskId"
min="1"
max="182"
step="0"
[(value)]="focusedRowKey">
</dx-number-box>
</div>
</div>
import { NgModule, Component, ViewChild, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { DxTreeListModule, DxNumberBoxModule } from 'devextreme-angular';
import * as AspNetData from 'devextreme-aspnet-data-nojquery';
if(!/localhost/.test(document.location.host)) {
enableProdMode();
}
const url = "https://js.devexpress.com/Demos/Mvc/api/TreeListTasks";
@Component({
selector: 'demo-app',
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css'],
preserveWhitespaces: true
})
export class AppComponent {
columns: any;
dataSource: any;
taskEmployees: any;
taskSubject: string;
taskAssigned: string;
startDate: string;
taskStatus: string;
taskProgress: string;
focusedRowKey: number;
constructor() {
this.focusedRowKey = 4;
this.dataSource = AspNetData.createStore({
key: "Task_ID",
loadUrl: url + "/Tasks",
onBeforeSend: function(_, ajaxOptions) {
ajaxOptions.xhrFields = { withCredentials: true };
}
});
this.taskEmployees = AspNetData.createStore({
key: "ID",
loadMode: "raw",
loadUrl: url + "/TaskEmployees"
});
}
onFocusedRowChanged(e) {
var rowData = e.row && e.row.data,
cellValue,
assigned;
if(rowData) {
cellValue = e.component.cellValue(e.row.rowIndex, "Assigned");
this.taskEmployees.byKey(cellValue).done((item) => {
assigned = item.Name;
});
this.taskSubject = rowData.Task_Subject;
this.taskAssigned = assigned;
this.startDate = new Date(rowData.Task_Start_Date).toLocaleDateString();
this.taskStatus = rowData.Task_Status;
this.taskProgress = rowData.Task_Completion ? rowData.Task_Completion + "%" : "";
}
}
}
@NgModule({
imports: [
BrowserModule,
DxTreeListModule,
DxNumberBoxModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
#treeList {
max-height: 400px;
}
.task-info {
font-family: Segoe UI;
min-height: 100px;
display: flex;
flex-wrap: nowrap;
border: 2px solid rgba(0, 0, 0, 0.1);
padding: 16px;
box-sizing: border-box;
align-items: center;
justify-content: space-between;
}
.info {
display: flex;
flex-direction: column;
}
.task-subject {
line-height: 29px;
font-size: 18px;
font-weight: bold;
}
.progress {
display: flex;
flex-direction: column;
white-space: pre;
min-width: 105px;
}
.task-progress {
line-height: 42px;
font-size: 40px;
font-weight: bold;
}
.options {
margin-top: 20px;
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
position: relative;
}
.caption {
font-size: 18px;
font-weight: 500;
}
.option {
margin-top: 10px;
}
.option > .dx-numberbox {
width: 200px;
display: inline-block;
vertical-align: middle;
}
.option > span {
margin-right: 10px;
}
// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular and DevExtreme here:
// https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/
System.config({
transpiler: 'ts',
typescriptOptions: {
module: "system",
emitDecoratorMetadata: true,
experimentalDecorators: true
},
meta: {
'typescript': {
"exports": "ts"
},
'devextreme-aspnet-data-nojquery': {
"esModule": true
},
'devextreme/localization.js': {
"esModule": true
}
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@3.5.3/lib/typescript.js',
'@angular': 'npm:@angular',
'tslib': 'npm:tslib@2.1.0/tslib.js',
'rxjs': 'npm:rxjs@6.4.0',
'devextreme-aspnet-data-nojquery': 'npm:devextreme-aspnet-data-nojquery@2.7.1/index.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.5',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.8/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.11',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.18',
'devextreme-angular': 'npm:devextreme-angular@20.2.5',
'preact': 'npm:preact@10.5.11/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.11/hooks/dist/hooks.js'
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts'
},
'devextreme': {
defaultExtension: 'js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
packageConfigPaths: [
"npm:@angular/*/package.json",
"npm:@angular/common/*/package.json",
"npm:rxjs/package.json",
"npm:rxjs/operators/package.json",
"npm:devextreme-angular/*/package.json",
"npm:devextreme-angular/ui/*/package.json",
"npm:devextreme-angular/package.json",
"npm:devexpress-diagram/package.json",
"npm:devexpress-gantt/package.json",
]
});
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.10.2/dist/zone.js"></script>
<script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script src="config.js"></script>
<script>
System.import('app').catch(console.error.bind(console));
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<demo-app>Loading...</demo-app>
</div>
</body>
</html>