Tooltips in webforms?

Is it possible to add tooltips to controls in webforms?

It is called the alt text or something like that....

Would you mind being a bit more specific? I'm new to asp.net, only know simple html and am using the wysiwyg web form in VB.NET. Alt text sounds like something that I should insert into the HTML code (the 'codebehind'). Is this correct?

Thanks

Quite a few web server controls use a ToolTip property, you can use that on the server side, so you won't have to add it to the front-side html.

I am not aware if this works for any browser other than IE though, so depending on your requirements, its out there so you know.

There are also quite a few rocking 3rd-Party tooltip components for asp.net, that all work with invisible div's and such... use the Google..