ConfirmationBehavior.MessageButton Property

Gets or sets the confirmation message buttons. This is a dependency property.

Namespace: DevExpress.Mvvm.UI

Assembly: DevExpress.Xpf.Core.v21.2.dll

NuGet Package: DevExpress.Wpf.Core

Declaration

C#

public MessageBoxButton MessageButton { get; set; }

VB.NET

Public Property MessageButton As MessageBoxButton

Property Value

Type	Default	Description
MessageBoxButton	@System.Windows.MessageBoxButton.YesNo	Confirmation message buttons.

Remarks

The following code enables the Yes, No, and Cancel buttons in the confirmation message:

XAML

<Button Content="Close">
    <dxmvvm:Interaction.Behaviors>
        <dxmvvm:ConfirmationBehavior EnableConfirmationMessage="{Binding IsSaved, Converter={StaticResource BooleanNegationConverter}}" 
                                     Command="{Binding CloseCommand}" MessageText="The document has unsaved changes. Do you want to close the document?"/>
    </dxmvvm:Interaction.Behaviors>
</Button>

MainViewModel.cs

using DevExpress.Mvvm;
using DevExpress.Mvvm.DataAnnotations;
// ...
    public class MainViewModel : ViewModelBase {
    // ...
        [Command]
        public void Close() {
        // ...
        }
    }
}

MainViewModel.vb

Imports DevExpress.Mvvm
Imports DevExpress.Mvvm.DataAnnotations
' ...
    Public Class MainViewModel
        Inherits ViewModelBase
' ...
        <Command>
        Public Sub Save()
' ...
        End Sub
' ...
    End Class
End Namespace