winform 多线程中ShowDialog()步骤无效的解决办法

private void Form1_Load(object sender, EventArgs e)



{



    Thread thread = new Thread(remind);



    thread.IsBackground = true;



    thread.Start();



}



private void remind()



{



   while (true)



   {



      string h = "0";



      string m = "23";



      if (h == DateTime.Now.Hour.ToString() && m == DateTime.Now.Minute.ToString() && DateTime.Now.Second.ToString() == "0")



      {



          Form2 form2 = new Form2();



          form2.ShowDialog();



          Thread.Sleep(1000);



      }



   }



}



form2的ShowDialog()显示并不是模式窗体,如何解决这种情况？？？

解决办法：

 Form2 form2 = new Form2();



 form2.ShowDialog(this);