public bool Redo(int level)
{
for (int i = 0; i < level && RedoStack.Count > 0; i++)
{
IDataGridCommand idgCommand = RedoStack.Pop();
UndoStack.Push(idgCommand);
idgCommand.Execute();
}
return(RedoStack.Count > 0);
}
public bool Undo(int level)
{
for (int i = 0; i < level && UndoStack.Count > 0; i++)
{
IDataGridCommand idgCommand = UndoStack.Pop();
RedoStack.Push(idgCommand);
idgCommand.Rollback();
}
return(UndoStack.Count > 0);
}
