DxDropDownBox.InputId Property

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

Assembly : DevExpress.Blazor.v25.2.dll

Declaration

csharp

[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 the DropDownBox to a layout item’s template, use the InputId property to associate the 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

razor

<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