DxDropDownBox.InputId Property

Specifies a unique identifier (ID) of the editor’s input element.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.1.dll

NuGet Package: DevExpress.Blazor

Declaration

[DefaultValue(null)]
[Parameter]
public string InputId { get; set; }

Property Value

Type	Default	Description
String	null	A unique identifier.

Remarks

The InputId property value is assigned to the id attribute of the DropDownBox’s input element. The id is case-sensitive, should contain at least one character, and should not contain whitespaces (spaces, tabs, etc.)

When you create a Form Layout component and add a DropDownBox to a layout item’s template, use the InputId property to associate the DropDownBox with the layout item’s caption.

• Specify the layout item’s Caption property. A browser renders the caption as an HTML label element.
• Set the layout item’s CaptionFor property to a unique value. This value is assigned to the label’s for attribute.
• Set the editor’s InputId property to the same value as the item’s CaptionFor.

Note

If you do not specify the CaptionFor property, the Form Layout generates a random identifier (Guid ) and assigns it to the label’s for attribute and to the id property of the first input element in the template.

Run Demo: DropDown Box - Multiple Selection ListBox

<DxFormLayout>
    <DxFormLayoutItem Caption="Contact Name:" CaptionFor="dd_box">
        <Template>
            <DxDropDownBox InputId="dd_box" @bind-Value="Value" QueryDisplayText="QueryText">
                <DropDownBodyTemplate Context="ddb_context">
                    <DxListBox... />
                </DropDownBodyTemplate>
            </DxDropDownBox>
        </Template>
    </DxFormLayoutItem>
    @*...*@
</DxFormLayout>

You can click the associated label to focus the DropDownBox editor.

Implements

InputId