Graph.BeginUpdate 方法 (Object, String, UndoOption)

在中打开一次批处理模式更新更为有效的关系图()。必须调用返回的GraphTransactionScope的完整()方法，否则您的更改将被回滚。通常模式是使用此在 using 块，这样，如果引发了异常更改自动回滚。

命名空间： Microsoft.VisualStudio.GraphModel
程序集： Microsoft.VisualStudio.GraphModel（在 Microsoft.VisualStudio.GraphModel.dll 中）

语法

声明
Public Function BeginUpdate ( _
    undoUnitId As Object, _
    undoDescription As String, _
    option As UndoOption _
) As GraphTransactionScope

public GraphTransactionScope BeginUpdate(
    Object undoUnitId,
    string undoDescription,
    UndoOption option
)

public:
GraphTransactionScope^ BeginUpdate(
    Object^ undoUnitId, 
    String^ undoDescription, 
    UndoOption option
)

member BeginUpdate : 
        undoUnitId:Object * 
        undoDescription:string * 
        option:UndoOption -> GraphTransactionScope

public function BeginUpdate(
    undoUnitId : Object, 
    undoDescription : String, 
    option : UndoOption
) : GraphTransactionScope