/// <summary>
/// 还原撤销
/// </summary>
public void Restore()
{
if (this.treeHandler != null && this.treeHandler.Tree.Root != null)
{
TreeMemento treeMemento = this.treeCaretaker.getPrevMemento();
if (treeMemento != null)
{
this.treeHandler.Tree.Root = (Node)treeMemento.state.Clone();
if (this.treeHandler.Tree.Root != null)
{
this.BandIngTreeView(null, null);
this.state = PageState.Edit;
}
}
}
}
/// <summary>
/// 保存修改
/// </summary>
public void AddMemento()
{
TreeMemento treeMemento = new TreeMemento((Node)this.treeHandler.Tree.Root.Clone());
this.treeCaretaker.setMemento(treeMemento);
}
/// <summary>
/// 从备忘录里还原
/// </summary>
/// <param name="memento"></param>
public void restoreMemento(TreeMemento memento)
{
this.Tree.Root = memento.state;
}
