Changing Method

Notify this object's document or view that some part of this object's state is about to be changed.

Syntax

Visual Basic
C#

'Declaration
 
Public Overridable Sub Changing( _
   ByVal subhint As Integer _
)

public virtual void Changing( 
   int subhint
)

Parameters

subhint

Remarks

Normally this method is only called for the benefit of the GoUndoManager to record larger or more complex state before a change than can easily or efficiently be passed as the "old" or "previous" value in a call to Changed. This method does nothing if SuspendsUpdates is true. If you intend to turn on SuspendsUpdates for a while, to reduce the overhead of repeated notifications, you probably should call this method first and make sure the CopyOldValueForUndo and CopyNewValueForRedo methods can remember all of the relevant state before the unrecorded changes occur.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

GoObject Class
GoObject Members