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_DTE.UndoContext 屬性

取得全域 UndoContext 物件。

命名空間:  EnvDTE
組件:  EnvDTE (在 EnvDTE.dll 中)

語法

'宣告
ReadOnly Property UndoContext As UndoContext
UndoContext UndoContext { get; }
property UndoContext^ UndoContext {
    UndoContext^ get ();
}
abstract UndoContext : UndoContext with get
function get UndoContext () : UndoContext

屬性值

類型:EnvDTE.UndoContext
UndoContext 物件。

範例

Sub UndoContextExample()
   Dim selection As TextSelection = DTE.ActiveDocument.Selection()
   Dim start As EditPoint = selection.TopPoint.CreateEditPoint()
   Dim endpt As TextPoint = selection.BottomPoint
   Dim commentStart As String

   DTE.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.
      DTE.UndoContext.Close()
   End Try
End Sub

.NET Framework 安全性

請參閱

參考

_DTE 介面

EnvDTE 命名空間