相关疑难解决方法(0)

我能想到的只是与ComboBox.GetEnumerator或类似的东西有关.

我想做的事情如下:

System.Collections.IEnumerator e = this.task_difficulty_combobox.GetEnumerator();
while (e.MoveNext())
{
    if (e.ToString() == this.task.Difficulty.ToString())
    {
        Gtk.TreeIter i = (Gtk.TreeIter)e.Current;
        this.task_difficulty_combobox.SetActiveIter(i);
        break;
    }
}

但是,这不起作用.