ASP.NET checkbox changes focus?

Question

I have a checkbox control, and when it's clicked, the focus of the page changes to the top--the window scrolls to the top of the page.

Nowhere in the code am I specifying a change in focus, either in JavaScript on codebehind.

What could be causing this?

Answer 1

Is the checkbox set with Autopostback = true? This could cause the page to postback and reset the form.