<div class="form">
<h4>Employees</h4>
<dx-tree-view
id="treeview"
[items]="employees"
[width]="340"
[height]="320"
[showCheckBoxesMode]="showCheckBoxesMode"
[selectionMode]="selectionMode"
[selectNodesRecursive]="selectNodesRecursive"
[selectByClick]="selectByClick"
(onSelectionChanged)="treeViewSelectionChanged($event)"
(onContentReady)="treeViewContentReady($event)"
>
<div *dxTemplate="let item of 'item'">
{{ item.fullName + ' (' + item.position + ')' }}
</div>
</dx-tree-view>
<div class="selected-container">
Selected employees
<dx-list
id="selected-employees"
[width]="400"
[height]="200"
[items]="selectedEmployees"
showScrollbar="always"
>
<dxi-item *ngFor="let item of selectedEmployees">
{{ item.prefix + " " + item.fullName + " (" + item.position + ")" }}
</dxi-item>
</dx-list>
</div>
</div>
<div class="options">
<div class="caption">Options</div>
<div class="option">
<span>Show Check Boxes Mode:</span>
<dx-select-box
[items]="showCheckBoxesModes"
[value]="showCheckBoxesMode"
(onValueChanged)="showCheckBoxesModeValueChanged($event)"
></dx-select-box>
</div>
<div class="option">
<span>Selection Mode:</span>
<dx-select-box
[items]="selectionModes"
[value]="selectionMode"
[disabled]="isSelectionModeDisabled"
(onValueChanged)="selectionModeValueChanged($event)"
></dx-select-box>
</div>
<div class="option recursive-option">
<dx-check-box
text="Select Nodes Recursive"
[disabled]="isRecursiveDisabled"
[(value)]="selectNodesRecursive"
></dx-check-box>
</div>
<div class="option">
<dx-check-box
text="Select By Click"
[(value)]="selectByClick"
></dx-check-box>
</div>
</div>
import { NgModule, Component, Pipe, PipeTransform, enableProdMode, ViewChild } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { DxTreeViewModule, DxListModule, DxTemplateModule, DxCheckBoxModule, DxSelectBoxModule, DxTreeViewComponent } from 'devextreme-angular';
import { Service, Employee } from './app.service';
@Pipe({ name: 'title' })
export class TitlePipe implements PipeTransform {
transform(item: any): string {
return item.text + (item.price ? ' ($' + item.price + ')' : '');
}
}
if(!/localhost/.test(document.location.host)) {
enableProdMode();
}
@Component({
selector: 'demo-app',
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css'],
providers: [Service],
preserveWhitespaces: true
})
export class AppComponent {
@ViewChild(DxTreeViewComponent, { static: false }) treeView: DxTreeViewComponent;
employees: Employee[];
selectedEmployees: Employee[] = [];
showCheckBoxesModes: string[] = ["normal", "selectAll", "none"];
showCheckBoxesMode: string = this.showCheckBoxesModes[0];
selectionModes: string[] = ["multiple", "single"];
selectionMode: string = this.selectionModes[0];
selectNodesRecursive: boolean = true;
selectByClick: boolean = false;
isRecursiveDisabled: boolean = false;
isSelectionModeDisabled: boolean = false;
constructor(service: Service) {
this.employees = service.getEmployees();
}
treeViewSelectionChanged(e) {
this.syncSelection(e.component);
}
treeViewContentReady(e) {
this.syncSelection(e.component);
}
syncSelection(treeView) {
const selectedEmployees = treeView.getSelectedNodes()
.map(node => node.itemData);
this.selectedEmployees = selectedEmployees;
}
showCheckBoxesModeValueChanged(e) {
this.showCheckBoxesMode = e.value;
this.isSelectionModeDisabled = e.value === 'selectAll';
if(e.value === 'selectAll') {
this.selectionMode = "multiple";
this.isRecursiveDisabled = false;
}
}
selectionModeValueChanged(e) {
this.selectionMode = e.value;
this.isRecursiveDisabled = e.value === 'single';
if(e.value === 'single') {
this.selectNodesRecursive = false;
this.treeView.instance.unselectAll();
}
}
}
@NgModule({
imports: [
BrowserModule,
DxTreeViewModule,
DxListModule,
DxTemplateModule,
DxCheckBoxModule,
DxSelectBoxModule
],
declarations: [AppComponent, TitlePipe],
bootstrap: [AppComponent]
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep .form>h4 {
margin-bottom: 20px;
}
::ng-deep .form>div,
::ng-deep #treeview {
display: inline-block;
vertical-align: top;
}
::ng-deep .selected-container {
padding: 20px;
margin-left: 20px;
background-color: rgba(191, 191, 191, 0.15);
font-size: 115%;
font-weight: bold;
}
::ng-deep #selected-employees {
margin-top: 20px;
}
::ng-deep .dx-list-item-content {
padding-left: 0;
}
::ng-deep .options {
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
margin-top: 20px;
}
::ng-deep .caption {
font-size: 18px;
font-weight: 500;
}
::ng-deep .option {
width: 24%;
display: inline-block;
margin-top: 10px;
margin-right: 5px;
box-sizing: border-box;
}
::ng-deep .recursive-option {
padding-left: 10px;
}
::ng-deep .option:last-of-type {
margin-right: 0px;
}
import { Injectable } from '@angular/core';
export class Employee {
id: number;
fullName: string;
prefix: string;
position: string;
expanded?: boolean;
selected?: boolean;
items?: Employee[];
}
var employees: Employee[] = [{
id: 1,
fullName: "John Heart",
prefix: "Dr.",
position: "CEO",
expanded: true,
items: [{
id: 2,
fullName: "Samantha Bright",
prefix: "Dr.",
position: "COO",
expanded: true,
items: [{
id: 3,
fullName: "Kevin Carter",
prefix: "Mr.",
position: "Shipping Manager",
}, {
id: 14,
fullName: "Victor Norris",
prefix: "Mr.",
selected: true,
position: "Shipping Assistant"
}]
}, {
id: 4,
fullName: "Brett Wade",
prefix: "Mr.",
position: "IT Manager",
expanded: true,
items: [{
id: 5,
fullName: "Amelia Harper",
prefix: "Mrs.",
position: "Network Admin"
}, {
id: 6,
fullName: "Wally Hobbs",
prefix: "Mr.",
position: "Programmer"
}, {
id: 7,
fullName: "Brad Jameson",
prefix: "Mr.",
position: "Programmer"
}, {
id: 8,
fullName: "Violet Bailey",
prefix: "Ms.",
position: "Jr Graphic Designer",
}]
}, {
id: 9,
fullName: "Barb Banks",
prefix: "Mrs.",
position: "Support Manager",
expanded: true,
items: [{
id: 10,
fullName: "Kelly Rodriguez",
prefix: "Ms.",
position: "Support Assistant"
}, {
id: 11,
fullName: "James Anderson",
prefix: "Mr.",
position: "Support Assistant"
}]
}]
}];
@Injectable()
export class Service {
getEmployees(): Employee[] {
return employees;
}
}
// 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/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',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.26.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.6',
'jszip': 'npm:jszip@3.6.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.10.3/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.18',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.24',
'devextreme-angular': 'npm:devextreme-angular@20.2.6',
'preact': 'npm:preact@10.5.13/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.13/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/20.2.6/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.6/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>