如何在定时器中更新LABEL的值,请看代码

怎么在定时器中更新LABEL的值,请看代码
private   void   timer1_Tick(object   sender,   System.EventArgs   e)
{
labMess.Text   =   "hhhhuyddrdeetnnn ";
timer1.Enabled   =   false;
labMess.Text   =   "2222222222222222 ";
Thread.Sleep(50000);
labMess.Text   =   "6666666666666666 ";
Thread.Sleep(50000);
                  timer1.Enabled   =   true;
}
定时器为5秒,LABEL原来的值是 "AAAAAAAAAAA ",把断点设到timer1.Enabled   =   true
可是到了断点后,LABEL的值还是 "AAAAAAAAAAA ",请问高手这是怎么回事.谢谢

[解决办法]
labMess.Text = "6666666666666666 ";
labMess.Refresh();

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