How to Group popup items with ListView component in Angular DropDownButton component

Angular

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23 Sep 2021 / 2 minutes to read

Header in popup items is possible in DropdownButton by templating entire popup with ListView. Create ListView with id listview and provide it as a target for DropDownButton.

In the following example, ListView element is given as target to DropDownButton and header can be achieved by groupBy property.

Source

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app.component.ts

app.module.ts

main.ts

styles.css

import { Component } from '@angular/core';
import { ItemModel } from '@syncfusion/ej2-angular-splitbuttons';

@Component({
    selector: 'app-root',
    template: `<!-- To render ListView. -->
               <ejs-listview id='listview' [dataSource]='data' [fields]='field' showCheckBox='true'></ejs-listview>
               <!-- To render DropDownButton. -->
               <button ejs-dropdownbutton target='#listview' iconCss='e-icons e-down' cssClass='e-caret-hide'></button>`
})

export class AppComponent {
   // Initialize action items.
   public items: ItemModel[] = [
        {
            text: 'Cut'
        },
        {
            text: 'Copy'
        },
        {
            text: 'Paste'
        }];
  // Datasource for listview.
  public data: Object = [
    { class: 'data', text: 'Print', id: 'data1', category: 'Customize Quick Access Toolbar' },
    { class: 'data', text: 'Save As', id: 'data2', category: 'Customize Quick Access Toolbar' },
    { class: 'data', text: 'Update Folder', id: 'data3', category: 'Customize Quick Access Toolbar' },
    { class: 'data', text: 'Reply', id: 'data4', category: 'Customize Quick Access Toolbar' }
];

  public field: Object = { text: 'text', groupBy: 'category' };

}

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { DropDownButtonModule } from '@syncfusion/ej2-angular-splitbuttons';
import { AppComponent } from './app.component';
import { enableRipple } from '@syncfusion/ej2-base';
import { ListViewModule } from '@syncfusion/ej2-angular-lists';

enableRipple(true);

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        ListViewModule,
        DropDownButtonModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

#loader {
  color: #008cff;
  height: 40px;
  width: 30%;
  position: absolute;
  font-family:  'Helvetica Neue','calibiri';
  font-size:16px;
  top: 45%;
  left: 45%;
}

#listview {
  display: block;
  max-width: 400px;
  margin: auto;
  border: 1px solid #dddddd;
  border-radius: 3px;
}

.e-down::before {
  content: '\e969';
}