In ASP.NET 1.1, you should do 1 pop-up dialog, usually written in the server code:
BTNClick.attributes.add ("onclick", "Return Confirm ('is you sue?');"); now in ASP.NET 2.0, just use the client's code, you can pull, there is a lot of onclientClick, write this way ask: button> Haha, the effect is the same, is it Very convenient?