DxRibbonComboBoxItem<TData, TValue>.NullText Property

Specifies the prompt text displayed in the editor when its value is null.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v25.1.dll

NuGet Package: DevExpress.Blazor

Declaration

[Parameter]
public string NullText { get; set; }

Property Value

Type	Description
String	The prompt text.

Remarks

Use the NullText property to display prompt text in the ribbon combo box item when its value is null.

Razor

...
<DxRibbonComboBoxItem Data="FontSizes"
                      @bind-Value="CurrentFontSize"
                      TextFieldName="@nameof(FontSizeInfo.Size)"
                      AllowUserInput="true"
                      NullText="Font Size"
                      Width="120px" />
...
@code {
    private FontSizeInfo CurrentFontSize { get; set; }
    private IEnumerable<FontSizeInfo> FontSizes => FontSizeInfo.DefaultFontSizes;
}

FontSizeInfo.cs

public class FontSizeInfo {
    public int Size { get; private set; }

    public FontSizeInfo(int size) {
        Size = size;
    }
    public static readonly FontSizeInfo[] DefaultFontSizes = new FontSizeInfo[] {
            new FontSizeInfo(8),
            new FontSizeInfo(10),
            new FontSizeInfo(12),
            new FontSizeInfo(14),
            new FontSizeInfo(18),
            new FontSizeInfo(24),
        };
}