Require text entry - only if radio button checked

[David Thielen]

Hi;

I have a case where I need to require a TextBox be filled in only if a
certain radio button is checked. I can't use RequiredFieldValidator because
if the button is not checked, then it can be empty. But a
CustomValidator.OnServerValidate is not called if a TextBox is empty.

How should I handle this?

--
thanks - dave
david_at_windward_dot_net
http://www.windwardreports.com

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[Alessandro Zifiglio]

hi David, theres a new property for asp.net 2.0 supported by the
customvalidator control, which you can set to have it validate an empty
textbox control. The property you want to enable is :
ValidateEmptyText="true"

http://msdn2.microsoft.com/en-us/li...ntrols.customvalidator.validateemptytext.aspx

Regards,
Alessandro Zifiglio
http://www.AsyncUI.net

 

[Steven Cheng[MSFT]]

Thanks for Alessandro's input.

Hi Dave,

Does the "ValidateEmptyText" property the one you need? Please feel free
to post here if you have any further questions.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead


This posting is provided "AS IS" with no warranties, and confers no rights.

 

[Tasos Vogiatzoglou]

You could also enable/disable the RequieredValidator by using a short
clientSide snippet. Something like radioButton.Attributes["onchange"] =
string.Format("ValidatorEnable(document.getElementById('{0}'),_
document.getElementById('{1}').checked);",requiredValidator.ClientID,radioButton.ClientID);

Regards,
Tasos

 

[David Thielen]

that was it - thank you


--
thanks - dave
david_at_windward_dot_net
http://www.windwardreports.com

Cubicle Wars - http://www.windwardreports.com/film.htm