UndoContext::SetAborted Method ()
Visual Studio 2015
Discards all changes to participating open documents since opening the UndoContext object.
Assembly: EnvDTE (in EnvDTE.dll)
SetAborted sets the IsAborted property for the open UndoContext object to true. When this occurs, all changes made to participating documents since opening the UndoContext object until the UndoContext object is closed are discarded.
Sub SetAbortedExample() ' Before running, select text in an open document. Dim txtSel As TextSelection Dim strTS As String, strAnswer As String, bIsOpen As Boolean txtSel = DTE.ActiveDocument.Selection strTS = txtSel.Text ' Check to see if UndoContext object is already open. If DTE.UndoContext.IsOpen = True Then bIsOpen = True Else ' Open the UndoContext object to track changes. DTE.UndoContext.Open("RemoveNewLines", False) End If MsgBox("Current IsAborted value: " & DTE.UndoContext.IsAborted) ' Perform search for newline characters and remove them. If strTS <> "" Then txtSel.Delete() strTS = Replace(strTS, vbNewLine, "", Compare:=vbTextCompare) txtSel.Insert(strTS) End If ' Check to see if you want to discard changes. strAnswer = MsgBox("Do you want to discard all changes made?", vbYesNo & vbQuestion) If strAnswer = True Then DTE.UndoContext.SetAborted() MsgBox("Current IsAborted value: " & DTE.UndoContext.IsAborted) End If ' If UndoContext was already open, don't close it. If bIsOpen = True Then ' Close the UndoContext object to commit the changes. DTE.UndoContext.Close() End If End Sub
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