DxRibbonComboBoxItem<TData, TValue>.NullText Property

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

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v25.2.dll

NuGet Package: DevExpress.Blazor

Declaration

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

Property Value

Type	Default	Description
String	null	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),
        };
}

Implements

DevExpress.Blazor.Ribbon.IRibbonComboBox<TData, TValue>.NullText