跨线程访问控件

 

delegate void SetTextCallback(string text);//建立一个委托用于控件显示
        private void AddText(string text)
        {
            if (this.richTextBox1.InvokeRequired)
            {
                SetTextCallback d = new SetTextCallback(AddText);
                this.Invoke(d, new object[] { text });
            }
            else
            {
                this.richTextBox1.AppendText(text);
            }

        }