DxComboBox<TData, TValue>.ShowDropDownButton Property

Specifies whether the ComboBox displays the built-in button that invokes a drop-down menu.

Namespace : DevExpress.Blazor

Assembly : DevExpress.Blazor.v25.2.dll

NuGet Package : DevExpress.Blazor

Declaration

[DefaultValue(true)]
[Parameter]
public bool ShowDropDownButton { get; set; }

Property Value

true to display the drop-down button; otherwise, false.

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Remarks

The DxComboBox<TData, TValue> component shows the built-in drop-down button that invokes a menu. You can set the ShowDropDownButton property to false to hide this button.

You can also add a custom drop-down button to the ComboBox:

1. Add the <Buttons></Buttons> tag to the component’s markup to define the Buttons collection.
2. Add a DxComboBoxDropDownButton object.
3. Set up button properties to customize the button:

• CssClass
• Position
• Enabled
• and so on

The following code snippet hides the built-in drop-down button, adds a new drop-down button, and specifies its position.

<DxComboBox Data="@Cities" @bind-Value="@Value" ShowDropDownButton=false>
    <Buttons>
        <DxComboBoxDropDownButton Position="EditorButtonPosition.Left"/>
    </Buttons>
</DxComboBox>

@code {
  IEnumerable<string> Cities = new List<string>() {
    "London",
    "Berlin",
    "Paris",
  };

  string Value { get; set; }
}

Implements

DevExpress.Blazor.IComboBox<TData, TValue>.ShowDropDownButton

See Also

DxComboBox<TData, TValue> Class

DxComboBox<TData, TValue> Members

DevExpress.Blazor Namespace