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V25.1
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    DxDropDownBoxDropDownButton Class

    A button that invokes the drop-down window in the DxDropDownBox component.

    Namespace: DevExpress.Blazor

    Assembly: DevExpress.Blazor.v25.1.dll

    NuGet Package: DevExpress.Blazor

    #Declaration

    C#
    public class DxDropDownBoxDropDownButton :
        DxEditorDropDownButtonBase

    #Remarks

    The DxDropDownBox component has a built-in button that invokes the drop-down window. Set the ShowDropDownButton property to false to hide this button.

    You can add a custom drop-down button to the editor as follows:

    1. Add a DxDropDownBoxDropDownButton object to the Buttons collection.
    2. Customize button properties.
    Razor
    <label for="ddbMultipleSelectionListBox" class="cw-480 mb-1">Employees</label>
    <DxDropDownBox @bind-Value="Value"
                    QueryDisplayText="QueryText"
                    InputId="ddbMultipleSelectionListBox"
                    CssClass="cw-480"
                    ShowDropDownButton="false"
                    ClearButtonDisplayMode="DataEditorClearButtonDisplayMode.Auto">
        <Buttons>
            <DxDropDownBoxDropDownButton Position="EditorButtonPosition.Left" />
            <DxEditorButton Text="Default" Click="SetDefaultValue" />
        </Buttons>
        <DropDownBodyTemplate>
            <DxListBox ... />
        </DropDownBodyTemplate>
    </DxDropDownBox>
    
    @code {
        object Value { get; set; }
    
        // ...
        void SetDefaultValue(MouseEventArgs args) {
            // Value = ...
        }
    }
    

    DropDown Box with custom buttons

    For more information about command buttons in editors, refer to the following topic: Command Buttons.

    #Inheritance

    Object
    ComponentBase
    DevExpress.Blazor.Internal.RenderComponentBase
    DevExpress.Blazor.Internal.Editors.DxEditorButtonBase
    DxEditorDropDownButtonBase
    DxDropDownBoxDropDownButton
    See Also