多线程操作控件文本

定义委托-----------------------------------------------------------------public delegate void SetListText(string str); private SetListText SetText;----------------------------------------------------------------- 定义函数   private void listAddItems(string strMessage){    if (this.InvokeRequired)    {        SetText = new SetListText(listAddItems);        this.Invoke(SetText, new object[] { strMessage });    }    else        list_Show.Items.Add(strMessage);    list_Show.SelectedIndex = list_Show.Items.Count - 1;}-----------------------------------------------------------------