EventArgs

public class EventRename : EventArgs, ICommand
{
    public GameObject item;
    public VirtualizingTreeViewDemo demo;
    public string OldString;
    public string NewString;

    public EventRename()
    {
        UndoRedoManager.Insert(this);
    }

    void ICommand.Execute()
    {
        demo.OnRename(null, this, NewString);
    }

    void ICommand.UnExecute()
    {
        demo.OnRename(null, this, OldString);
    }
}


public void SetRenameEvent(string newString)
    {
        GameObject selected = TreeView.SelectedItem as GameObject;
        var e = new EventRename() { item = selected, demo = this, NewString = newString, OldString = selected.name };
        OnRename(this, e, newString);
    }

    public void OnRename(object sender, EventRename e, string rename)
    {
        e.item.name = rename;
        TreeView.GetItemContainer(e.item).GetComponentInChildren<Text>(true).text = rename;
    }

다양하게 사용해보기~