首页 / API 参考 / Ecng.ComponentModel IUndoRedoManager Ecng.ComponentModel Undo/redo manager. 属性 RedoCommand public ICommand RedoCommand { get; } value = iUndoRedoManager.RedoCommand Redo command. UndoCommand public ICommand UndoCommand { get; } value = iUndoRedoManager.UndoCommand Undo command.