EventInfo.EventHandlerType Property
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Gets the Type object of the underlying event-handler delegate associated with this event.
Assembly: mscorlib (in mscorlib.dll)
The following example uses the EventHandlerType property to discover the delegate type of an event and to display its parameter types.
The example defines a delegate named MyDelegate and an event named MyEvent of type MyDelegate. The code in the Main method discovers the event signature by getting the delegate type of the event, getting the Invoke method of the delegate type, and then retrieving and displaying the parameters.
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To run this example, see Building examples that have static TextBlock controls for Windows Phone 8. |
Imports System.Reflection Public Delegate Sub MyDelegate(ByVal i As Integer, ByRef s As String) Public Class Example Public Event MyEvent As MyDelegate Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock) Dim delegateType As Type = GetType(Example).GetEvent("MyEvent").EventHandlerType ' The Invoke method of a delegate type always has the same signature ' as the delegate. Dim invoke As MethodInfo = delegateType.GetMethod("Invoke") For Each p As ParameterInfo In invoke.GetParameters() outputBlock.Text &= p.ParameterType.ToString() & vbLf Next p End Sub End Class ' This example produces the following output: ' 'System.Int32 'System.String&
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