Geting the width of a detailsview at runtime

Hello Experts,

I'm getting the impression this isn't as easy as I'd like it to be.  Still, I need to be able to retrieve the width of my detailsview object at runtime.  It expands to the length of the content, so it can be any width.

Essentially I need to be able to mirror it's look with a table, and that all works except I don't know what to set the table width to.

I'd prefer a server-side solution, but have a sinking feeling it may require require javascript.

Thanks!
Moe