Grouped Items
Documentation
The TagBox widget allows you to group items within the drop-down list. This demo illustrates how to enable grouping and how to define a custom template for groups.
Feel free to share demo-related thoughts here.
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If you have technical questions, please create a support ticket in the DevExpress Support Center.
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<div class="dx-fieldset">
<div class="dx-field">
<div class="dx-field-label">Grouped items</div>
<div class="dx-field-value">
<dx-tag-box
[dataSource]="simpleProducts"
valueExpr="ID"
[value]="[17, 19]"
grouped="true"
displayExpr="Name">
</dx-tag-box>
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">Grouped items with search enabled</div>
<div class="dx-field-value">
<dx-tag-box
[dataSource]="simpleProducts"
valueExpr="ID"
[value]="[17, 19]"
grouped="true"
displayExpr="Name"
searchEnabled="true">
</dx-tag-box>
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">Grouped items with a custom group template</div>
<div class="dx-field-value">
<dx-tag-box
[dataSource]="simpleProducts"
valueExpr="ID"
[value]="[18]"
grouped="true"
displayExpr="Name"
searchEnabled="true"
groupTemplate="group"
>
<div *dxTemplate="let data of 'group'">
<div class='custom-icon'>
<span class='dx-icon-box icon'></span>
{{data.key}}
</div>
</div>
</dx-tag-box>
</div>
</div>
</div>
import { NgModule, Component, enableProdMode } from '@angular/core';
import {BrowserModule} from '@angular/platform-browser';
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import DataSource from 'devextreme/data/data_source';
import ArrayStore from 'devextreme/data/array_store';
import {
DxTagBoxModule
} from 'devextreme-angular';
import {Product, Service} from './app.service';
if(!/localhost/.test(document.location.host)) {
enableProdMode();
}
@Component({
selector: 'demo-app',
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css'],
providers: [Service]
})
export class AppComponent {
simpleProducts: DataSource;
data: any;
constructor(service: Service) {
this.simpleProducts = new DataSource({
store: new ArrayStore({
data: service.getProducts(),
key: "id",
}),
group: "Category"
});
}
}
@NgModule({
imports: [
BrowserModule,
DxTagBoxModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule {
}
platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep .custom-icon .icon {
font-size: 17px;
color: #f05b41;
margin-right: 2px;
}
::ng-deep .dx-field {
margin-bottom: 50px;
}
import {Injectable} from '@angular/core';
export class Product {
ID: number;
Name: string;
Category: string;
}
let products: Product[] = [{
"ID": 1,
"Name": "HD Video Player",
"Category": "Video Players"
}, {
"ID": 2,
"Name": "SuperHD Player",
"Category": "Video Players"
}, {
"ID": 3,
"Name": "SuperPlasma 50",
"Category": "Televisions"
}, {
"ID": 4,
"Name": "SuperLED 50",
"Category": "Televisions"
}, {
"ID": 5,
"Name": "SuperLED 42",
"Category": "Televisions"
}, {
"ID": 6,
"Name": "SuperLCD 55",
"Category": "Televisions"
}, {
"ID": 7,
"Name": "SuperLCD 42",
"Category": "Televisions"
}, {
"ID": 8,
"Name": "SuperPlasma 65",
"Category": "Televisions"
}, {
"ID": 9,
"Name": "SuperLCD 70",
"Category": "Televisions"
}, {
"ID": 10,
"Name": "DesktopLED 21",
"Category": "Monitors"
}, {
"ID": 11,
"Name": "DesktopLED 19",
"Category": "Monitors"
}, {
"ID": 12,
"Name": "DesktopLCD 21",
"Category": "Monitors"
}, {
"ID": 13,
"Name": "DesktopLCD 19",
"Category": "Monitors"
}, {
"ID": 14,
"Name": "Projector Plus",
"Category": "Projectors"
}, {
"ID": 15,
"Name": "Projector PlusHD",
"Category": "Projectors"
}, {
"ID": 16,
"Name": "Projector PlusHT",
"Category": "Projectors"
}, {
"ID": 17,
"Name": "ExcelRemote IR",
"Category": "Automation"
}, {
"ID": 18,
"Name": "ExcelRemote BT",
"Category": "Automation"
}, {
"ID": 19,
"Name": "ExcelRemote IP",
"Category": "Automation"
}];
@Injectable()
export class Service {
getProducts(): Product[] {
return products;
}
}
// 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://github.com/DevExpress/devextreme-angular/blob/master/README.md
System.config({
transpiler: 'ts',
typescriptOptions: {
module: "commonjs",
emitDecoratorMetadata: true,
experimentalDecorators: true
},
meta: {
'typescript': {
"exports": "ts"
}
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@3.4.5/lib/typescript.js',
'@angular/core': 'npm:@angular/core@8.0.0/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common@8.0.0/bundles/common.umd.js',
'@angular/compiler': 'npm:@angular/compiler@8.0.0/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser@8.0.0/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@8.0.0/bundles/platform-browser-dynamic.umd.js',
'@angular/router': 'npm:@angular/router@8.0.0/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms@8.0.0/bundles/forms.umd.js',
'@angular/common/http': 'npm:@angular/common@8.0.0/bundles/common-http.umd.js',
'tslib': 'npm:tslib/tslib.js',
'rxjs': 'npm:rxjs@6.3.3',
'rxjs/operators': 'npm:rxjs@6.3.3/operators',
'devextreme': 'npm:devextreme@19.1',
'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.6/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram',
'devextreme-angular': 'npm:devextreme-angular@19.1'
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts'
},
'devextreme': {
defaultExtension: 'js'
},
'rxjs': { main: 'index.js', defaultExtension: 'js' },
'rxjs/operators': { main: 'index.js', defaultExtension: 'js' },
'devextreme-angular': {
main: 'index.js',
defaultExtension: 'js'
}
}
});
<!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/19.1.6/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.1.6/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@0.6.25/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>