对按钮事件提供一个对话框进行确定

 

<script language="javascript">

              function keydown()

              {

                     var keycode=event.keycode;

                     if(keycode==13)

                     event.keycode=9;

              }

              document.onkeydown=keydown;

             

              function Confirm()

              {

                     return confirm('确认发送该邮件?');

              }

</script>

sub page_load中的事件:

Button1.Attributes.Add("onclick", "return Confirm()")