DevExtreme Angular - Overview

The SelectBox widget is an editor that allows an end user to select an item from a drop-down list.

View Demo

The following code adds the SelectBox to your page. The simplest configuration of the widget requires only a dataSource to be specified. In addition, you can specify the placeholder to be displayed when the SelectBox is empty.

HTML
TypeScript
  • <dx-select-box
  • [dataSource]="products"
  • placeholder="Select a product...">
  • </dx-select-box>
  • import { DxSelectBoxModule } from "devextreme-angular";
  • // ...
  • export class AppComponent {
  • products = [
  • "HD Video Player",
  • "SuperHD Video Player",
  • "SuperPlasma 50",
  • // ...
  • ];
  • }
  • @NgModule({
  • imports: [
  • // ...
  • DxSelectBoxModule
  • ],
  • // ...
  • })

If your data is an array of objects, specify:

  • valueExpr
    The data field whose value will be written into the value option.
  • displayExpr
    The data field whose value will be displayed in the drop-down list and in the input field of the widget.
HTML
TypeScript
  • <dx-select-box
  • [dataSource]="selectBoxData"
  • valueExpr="id"
  • displayExpr="country">
  • </dx-select-box>
  • import { DxSelectBoxModule } from "devextreme-angular";
  • // ...
  • export class AppComponent {
  • selectBoxData = [
  • { id: 1, country: "Afghanistan" },
  • { id: 2, country: "Albania" },
  • // ...
  • ];
  • }
  • @NgModule({
  • imports: [
  • // ...
  • DxSelectBoxModule
  • ],
  • // ...
  • })
See Also