winfrom SocketAsyncEventArgs 跨線程訪問控件 調試退出

Control.CheckForIllegalCrossThreadCalls = false;
有人會麼？這個問題在winfrom裡面的。。。。
還有這個更好的方法
        delegate void FunDelegate(string str);

        private void FunStart(object obj)//線程中調用的方法 FunStart("123456789");
        {
            FunDelegate funDelegate = new FunDelegate(Fun);
         
            IAsyncResult aResult = this.BeginInvoke(funDelegate, obj.ToString());
           
            aResult.AsyncWaitHandle.WaitOne(-1);
        
            string str = (string)this.EndInvoke(aResult);
     
        }
 
        private void Fun(string datetime)
        {
           richTextBox1.Text= (string)datetime;
          
        }