.NET validation controls and custom web control

[Marc Robitaille]

Hello,

I built myself a calendar control. I want the control to be able to be
validated by .NET validation controls. So I added the
ValidationPropertyAttribute("Text") to my class declaration of my calendar
control. It is the Text property of my control which must be validated. I
add a CompareValidator control to my web page and I adjust the properties of
this control to validate my calendar control. I use a CompareValidator to
ensure me that it is well a date which is seized in my control. When I
seized a date, that seems to function but if I seized anything other that a
date, the error message of the compareValidator is not showing on my web
page. What do I have to do so my calendar control can be validated by .NET
validation controls?

excuse my bad english
Thank you

 

[Peter Blum]

By design, the CompareValidator will not evaluate when the ControlToValidate
returns an empty string. Most likely, when there is no selection on your
calendar, you are returning this. Its a good idea to return the empty
string. So leave that alone. Instead, add the RequiredFieldValidator just
like you would for an ordinary textbox.

--- Peter Blum
www.PeterBlum.com
Email: (e-mail address removed)
Creator of "Professional Validation And More" at
http://www.peterblum.com/vam/home.aspx

 

[Marc Robitaille]

I have allready try this. If I enter 2005-12-31, it is ok. If I enter
2005-12-49, the error message of the validatoir doesn't show on the web
page. What do I have to do to make my control validate by a .NET validator
object?

p.s.
I have allready add the ValidationPropertyAttribute attribute to my class.

Marc R.