public void Redo()
{
UndoRedoItem <T> top = (UndoRedoItem <T>)_redoStack.Pop();
top.Cmd.Execute(top);
top.SwapOldAndNew();
_undoStack.Push(top);
//RemoveChangeLog(top);
}
public void Undo(bool canRedo)
{
UndoRedoItem <T> top = _undoStack.Pop();
top.Cmd.UnExecute(top);
if (canRedo == true)
{
top.SwapOldAndNew();
_redoStack.Push(top);
}
//AddChangeLog(top);
}