Causesvalidation

[Jon]

Hi..
I have a radcombox box in an ajax panel..
The Causesvalidation does not fire unless I set AutoPostBack to true.
Is this correct....?
I need to validation to fire but I don't want to post back.
thanks again

[Cori]

Hello Jon,

That is correct, validation only fires if the control posts back, at least in the case when you use a CustomValidator control to do validation. Also, I don't quite understand your issue, do you want validation to occur on the combobox when a different item is selected or do you want validation on the rest of the form to be validated based on the selection made in the combobox. If you could expand on what you want to do or show us a simple version of your page.

I hope that helps.

[Jon]

The problem is I have a huge form.. and I dont' wanto postback to validate a the combobox... because on postback.. I change the current control focus and do other stuff....   I'm not a javascript guy and don't know how to write client side validation code (Convert my custom validator regularexpressions to JS)
thanks

[T. Tsonev]

Hi Jon,

What is the expression that you're using. Perhaps we can help you with the conversion.

Sincerely yours,
Tsvetomir Tsonev
the Telerik team

[Jon]

Thanks...

 

 

<asp:RegularExpressionValidator ID="valEMAIL" runat="server"

 

 

 

ControlToValidate="txtEMAIL" ErrorMessage="* Improperly formatted Email address"

 

 

 

Font-Bold="False" ForeColor="Red" SetFocusOnError="True"

 

 

 

ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"

 

 

 

Display="Dynamic"></asp:RegularExpressionValidator>

 

[Kalina]

Hello Jon,

In fact ASP.NET validators can be fired at client-side with the ValidatorValidate method.
You can handle OnClientBlur RadComboBox event (and optionally  OnClientSelectedIndexChanged event) and fire the RegularExpressionValidator in this manner:

function OnClientBlurHandler(sender, eventArgs) {
    var regularExpressionValidator = document.getElementById('<%= valEMAIL.ClientID %>');
    ValidatorValidate(regularExpressionValidator);

    var requiredFieldValidator = document.getElementById('<%= RequiredFieldValidator1.ClientID %>');
    ValidatorValidate(requiredFieldValidator);
}

Additionally – please change the regular expression that you use from:

ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"

to:

ValidationExpression="\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"

I prepared for you a sample page in order to illustrate this approach – please find it attached.

Best wishes,
Kalina
the Telerik team