event ViewStartChanging (Operation as ViewOperationEnum)
Occurs once the user is about to change the view.

TypeDescription
Operation as ViewOperationEnum A ViewOperationEnum expression that specifies the operation is about to begin.
The ViewStartChanging / ViewEndChanging events notify your application that an operation starts or ends. For instance,  ViewStartChanging(exSelectionChange) / ViewEndChanging(exSelectionChange) events notify your application that an item has been selected. The View property specifies the view where the event occurs. The ViewFromPoint property retrieves the view from the point. The ViewItemFromPoint property retrieves the view and item from the point. The ViewColumnFromPoint property retrieves the view and column from the point. The ColumnFromPoint property retrieves the column from the point.

Syntax for ViewStartChanging event, /NET version, on: 

private void ViewStartChanging(object sender,exontrol.EXCASCADETREELib.ViewOperationEnum   Operation)
{
}


Private Sub ViewStartChanging(ByVal sender As System.Object,ByVal Operation As exontrol.EXCASCADETREELib.ViewOperationEnum) Handles ViewStartChanging
End Sub

Syntax for ViewStartChanging event, /COM version, on: 

private void ViewStartChanging(object sender, AxEXCASCADETREELib._ICascadeTreeEvents_ViewStartChangingEvent e)
{
}


void OnViewStartChanging(long   Operation)
{
}


void __fastcall ViewStartChanging(TObject *Sender,Exmillerlib_tlb::ViewOperationEnum   Operation)
{
}


procedure ViewStartChanging(ASender: TObject; Operation : ViewOperationEnum);
begin
end;


procedure ViewStartChanging(sender: System.Object; e: AxEXCASCADETREELib._ICascadeTreeEvents_ViewStartChangingEvent);
begin
end;


begin event ViewStartChanging(long  Operation)

end event ViewStartChanging


Private Sub ViewStartChanging(ByVal sender As System.Object, ByVal e As AxEXCASCADETREELib._ICascadeTreeEvents_ViewStartChangingEvent) Handles ViewStartChanging
End Sub


Private Sub ViewStartChanging(ByVal Operation As EXCASCADETREELibCtl.ViewOperationEnum)
End Sub


Private Sub ViewStartChanging(ByVal Operation As Long)
End Sub


LPARAMETERS Operation



PROCEDURE OnViewStartChanging(oCascadeTree,Operation)

RETURN

Syntax for ViewStartChanging event, /COM version (others), on: 

<SCRIPT EVENT="ViewStartChanging(Operation)" LANGUAGE="JScript">
</SCRIPT>


<SCRIPT LANGUAGE="VBScript">
Function ViewStartChanging(Operation)
End Function
</SCRIPT>


Procedure OnComViewStartChanging OLEViewOperationEnum   llOperation
	Forward Send OnComViewStartChanging llOperation
End_Procedure


METHOD OCX_ViewStartChanging(Operation) CLASS MainDialog
RETURN NIL


void onEvent_ViewStartChanging(int   _Operation)
{
}


function ViewStartChanging as v (Operation  as  OLE::Exontrol.ExMiller.1::ViewOperationEnum)
end function


function nativeObject_ViewStartChanging(Operation)
return