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.

jQuery
HTML
JavaScript
<div id="selectBoxContainer"></div>
$(function() {
    $("#selectBoxContainer").dxSelectBox({
        dataSource: [
            "HD Video Player",
            "SuperHD Video Player",
            "SuperPlasma 50",
            // ...
        ],
        placeholder: "Select a product..."
    });
});
Angular
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.
jQuery
JavaScript
var selectBoxData = [
    { id: 1, country: "Afghanistan" },
    { id: 2, country: "Albania" },
    // ...
];

$(function() {
    $("#selectBoxContainer").dxSelectBox({
        dataSource: selectBoxData,
        valueExpr: 'id',
        displayExpr: 'country'
    });
});
Angular
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