FrameworkElement.TargetUpdated Event

Reference

Definition

Namespace:: System.Windows

Assembly:: PresentationFramework.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Occurs when the target value changes for any property binding on this element.

public:
 event EventHandler<System::Windows::Data::DataTransferEventArgs ^> ^ TargetUpdated;

public event EventHandler<System.Windows.Data.DataTransferEventArgs> TargetUpdated;

member this.TargetUpdated : EventHandler<System.Windows.Data.DataTransferEventArgs>

Public Custom Event TargetUpdated As EventHandler(Of DataTransferEventArgs)

Event Type

EventHandler<DataTransferEventArgs>

Remarks

This event creates an alias for the TargetUpdated event that is raised by any Binding associated with this element. This usually means that the binding in question is a two-way binding, and that the bound dependency property affirms that the previous property value is now invalid according to any validation or caching scheme that the property or the data source support.

Use the event data of the TargetUpdated event to determine the specific property that is reporting the target value update.

XAML Attribute Usage

<object TargetUpdated="eventHandler"/>

Applies to

Продукт	Версії
.NET Framework	3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

Поділитися через