Gets the global UndoContext object.
Namespace: EnvDTE80
Assembly: EnvDTE80 (in EnvDTE80.dll)
Syntax
'Declaration
ReadOnly Property UndoContext As UndoContext
UndoContext UndoContext { get; }
property UndoContext^ UndoContext {
UndoContext^ get ();
}
abstract UndoContext : UndoContext with get
function get UndoContext () : UndoContext
Property Value
Type: EnvDTE.UndoContext
A UndoContext object.
Examples
Sub UndoContextExample()
Dim selection As TextSelection = DTE2.ActiveDocument.Selection()
Dim start As EditPoint = selection.TopPoint.CreateEditPoint()
Dim endpt As TextPoint = selection.BottomPoint
Dim commentStart As String
DTE2.UndoContext.Open("Comment Region")
Try
Do While (start.LessThan(endpt))
start.Insert(commentStart)
start.LineDown()
start.StartOfLine()
Loop
Finally
' If an error occured, then need to make sure that the undo
' context is cleaned up. Otherwise, the editor can be left in a
' perpetual undo context.
DTE2.UndoContext.Close()
End Try
End Sub
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.