简单可这用:this.Invoke(new MethodInvoder(delegate(){textBox1.text="test";}));
转自:https://www.cnblogs.com/xyll/archive/2012/12/12/2814771.html
C# 跨线程调用ui控件
原文:https://www.cnblogs.com/yeyuqian/p/13488848.html