The Problem: You want to use the standard European Date Format, DD/MM/YYYY instead of the American Date Format MM/DD/YYYY. You change the “Format” feature of the CalendarExtender to “DD/MM/YYYY”, but then the CompareValidator (which you’re using to ensure valid dates) calls out that you have entered an invalid date.
The Cause: The Compare Validator is expecting a different date format than it receives, and throws the error. You will then notice that there is no “Format” attribute on the CompareValidator.
The Solution: Add the following line to the System.Web portion of your web.config file.
<globalization culture=”fr-FR”/>
That’s it!
This post originally appeared on the Stronico blog – with the absorption of Stronico into Digital Tool Factory this post has been moved to the Digital Tool Factory blog