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DomainDataSource.LoadingData Event

WCF RIA Services

[WCF RIA Services Version 1 Service Pack 2 is compatible with either .NET framework 4 or .NET Framework 4.5, and with either Silverlight 4 or Silverlight 5.]

Occurs when a data loading operation is started.

Namespace:  System.Windows.Controls
Assembly:  System.Windows.Controls.DomainServices (in System.Windows.Controls.DomainServices.dll)

'Declaration
Public Event LoadingData As EventHandler(Of LoadingDataEventArgs)
'Usage
Dim instance As DomainDataSource
Dim handler As EventHandler(Of LoadingDataEventArgs)

AddHandler instance.LoadingData, handler

This event is raised from Load and enables a handler to cancel the data loading before it starts. When a handler sets Cancel to true, the data loading will be aborted and a subsequent LoadedData event will not be raised. This differs slightly from canceling a data loading by way of CancelLoad.

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