What is the best way to validate a User Control

[DarwinIT]

I have found a calendar control that I'm inserting into my pages where dates need to be entered. What is the best way to validate that only valid dates are entered if the user types something. I'm wondering if I have to put the validator in the control module itself. Since sometimes the date will be required and other times it won't, I might have to create two controls - one required and one optional??

 

[jbenson001]

Use the compare validator and set the datatype to date.

 

[DarwinIT]

Thanks!
I was asking more along the lines of a strategy to validate user controls of any type. I was not aware of the CompareValidator. That is pretty slick. I think the solution here is to dynamically assign the controltovalidate to provide the name of the user control assigned when the page is created ControlToValidate="<%=GetClientID%> That keeps everything in the current page.