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.NET Framework 3.5
 PropertyChangingEventHandler Delega...
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This page is specific to
Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:
.NET Framework Class Library
PropertyChangingEventHandler Delegate

Represents the method that will handle the PropertyChanging event of an INotifyPropertyChanging interface.

Namespace:  System.ComponentModel
Assembly:  System (in System.dll)
Visual Basic (Declaration)
<HostProtectionAttribute(SecurityAction.LinkDemand, SharedState := True)> _
Public Delegate Sub PropertyChangingEventHandler ( _
    sender As Object, _
    e As PropertyChangingEventArgs _
)
Visual Basic (Usage)
Dim instance As New PropertyChangingEventHandler(AddressOf HandlerMethod)
C#
[HostProtectionAttribute(SecurityAction.LinkDemand, SharedState = true)]
public delegate void PropertyChangingEventHandler(
    Object sender,
    PropertyChangingEventArgs e
)
Visual C++
[HostProtectionAttribute(SecurityAction::LinkDemand, SharedState = true)]
public delegate void PropertyChangingEventHandler(
    Object^ sender, 
    PropertyChangingEventArgs^ e
)
JScript
JScript does not support delegates.

Parameters

sender
Type: System..::.Object
The source of the event.
e
Type: System.ComponentModel..::.PropertyChangingEventArgs
A PropertyChangingEventArgs that contains the event data.
NoteNote:

The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: SharedState. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

PropertyChangingEventHandler is introduced in the .NET Framework version 3.5. For more information, see .NET Framework 3.5 Architecture.

When you create a PropertyChangingEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate. For more information about event-handler delegates, see Events and Delegates.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5 SP1, 3.0 SP1, 2.0 SP1
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