I am new to this, and I need to identify (locate) the file that is used to display the alert icon (exclamation sign) that appears after a user has entered an invalid date. I need to replace that file with another picture. Please see the attachment.
Thanks for your reply. I am still don't know how to use your answer yet. All pages in the application containing the RadDateInput control inherit a Master Page which in turn has its own stylesheet.css file. I just don't understand where to insert the code you sen to me. I understood that the gif file will have to come from some folder in the App, but I do not see the link between the RadDateInput control declared below and your answer.
If you could please explain, I will appreciatte it.