using System.Threading;

       public delegate void MyInvoke(string str);//invoke方法建立委託
        private void btnStartThread_Click(object sender, EventArgs e)
        {
            Thread thread = new Thread(new ThreadStart(DoWord));
            thread.Start();
        }
        public void DoWord()
        {            
            MyInvoke mi = new MyInvoke(SetTxt);//例項化一個委託，並且指定委託方法

        public void SetTxt(string str)//委託對應的方法
        {
            txtReceive.Text += "invoke";
        }

this.listView1.Invoke(new EventHandler(delegate
 {
          listView1.Items.RemoveAt(i);
  }));