对 Windows 窗体控件进行线程安全调用的方法

子线程调用winform界面的 UI控件 的安全调用。

1. delegate void SetTextCallback(string text); 创建委托
2. private void SetText(string text)
   {
   // InvokeRequired required compares the thread ID of the
   // calling thread to the thread ID of the creating thread.
   // If these threads are different, it returns true.
   if (this.textBox1.InvokeRequired)
   {
   SetTextCallback d = new SetTextCallback(SetText);
   this.Invoke(d, new object[] { text });
   }
   else
   {
   this.textBox1.Text = text;
   }
   }