Catch broken Image url - c#

[eithan]

Hello helpers,
I have an asp image controls pointing to a URLs on a remote site that I have no control of. It's possible that one of my pictures point to a picture that does not exist. I would like to catch this with c# code behind and display some text or whatever.

I have searched the forums for this and found someone trying to solve it in VB. I couldn't make it work, maybe because i use C# and know little of VB.

Thanks, Eithan.