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OnBeforeObjectChanged Method
See Also 
Leadtools.Annotations Namespace > AnnAutomation Class : OnBeforeObjectChanged Method




e
An AnnBeforeObjectChangedEventArgs that contains the event data.
Raises the BeforeObjectChanged event.

Syntax

Visual Basic (Declaration) 
Protected Overridable Sub OnBeforeObjectChanged( _
   ByVal e As AnnBeforeObjectChangedEventArgs _
)
Visual Basic (Usage)Copy Code
Dim instance As AnnAutomation
Dim e As AnnBeforeObjectChangedEventArgs
 
instance.OnBeforeObjectChanged(e)
C# 
protected virtual void OnBeforeObjectChanged( 
   AnnBeforeObjectChangedEventArgs e
)
Managed Extensions for C++ 
protected: virtual void OnBeforeObjectChanged( 
   AnnBeforeObjectChangedEventArgs* e
)
C++/CLI 
protected:
virtual void OnBeforeObjectChanged( 
   AnnBeforeObjectChangedEventArgs^ e
)

Parameters

e
An AnnBeforeObjectChangedEventArgs that contains the event data.

Example

For an example, refer to BeforeObjectChanged.

Remarks

Raising an event invokes the event handler through a delegate. The OnBeforeObjectChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class. Notes to Inheritors: When overriding OnBeforeObjectChanged in a derived class, be sure to call the base class's OnBeforeObjectChanged method so that registered delegates receive the event.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

Leadtools.Annotations requires a Document or Medical toolkit license and unlock key. For more information, refer to: Raster Pro/Document/Medical Features