多线程操作控件属性

public partial class Form1 : Form
{
private delegate void FlushClient();//代理
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
Thread thread = new Thread(CrossThreadFlush);
thread.IsBackground = true;
thread.Start();
}

private void CrossThreadFlush()
{
while (true)
{
//将sleep和无限循环放在等待异步的外面
Thread.Sleep(1000);
ThreadFunction();
}
}

private void ThreadFunction()
{
if (this.textBox1.InvokeRequired)//等待异步
{
FlushClient fc = new FlushClient(ThreadFunction);
this.Invoke(fc);//通过代理调用刷新方法
}
else
{
this.textBox1.Text = DateTime.Now.ToString();
}
}
}