Validating multiple radio buttons with custom validator control

Hi,

I have three sets of radio button in 3 different groupID on my aspx page. If I have to do a validation so users have to select at least one from each group how do I achieve this.

Say this is what I'm doing:

 private void ServerValidate(object source, ServerValidateEventArgs args)
 {
     if (rdbLeveltwo.Checked == false && rdbLevelthree.Checked == false
               && rdbLevel23.Checked == false && rdbLevelfour.Checked == false && rdbLevel34.Checked == false)
     {
         args.IsValid = false;
     }
     else
     {
         args.IsValid = true;
     }
 }

This will validate one group and I can give the error message specific to this group that's fine. However, how do I handle the next two group and most importantly error messages specific to those group as I have set this error message already specific to the group1.

Please someone advice me!

Thanks in advance!
ube100Asked:
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masterpassCommented:
option 1

Use a radiobuttonlist with a required field validator
eg: http://asp-net-example.blogspot.co.nz/2009/02/aspnet-requiredfieldvalidator-example.html

option 2

have 3 customvalidators for three groups of radiobuttons. This way you can have three distinct message for each group

Hope this helps!
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dhawalsethCommented:
i believe you can use jquery for your need. better option.
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