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://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"
},
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"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@2.0.3/tslib.js',
'rxjs': 'npm:rxjs@6.3.3',
'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@20.2.3',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.5/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.0',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.0',
'devextreme-angular': 'npm:devextreme-angular@20.2.3',
'preact': 'npm:preact@10.5.5/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.5/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",
]
});
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<head>
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<body class="dx-viewport">
<div class="demo-container">
<demo-app>Loading...</demo-app>
</div>
</body>
</html>