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Drop Down list validation using Java Script in ASP.NET VB.NET

Hi,
I need to have a validate function that allow me to identify elements (different drown list) when they were not selected.After being called by validate function Thanks for your help

<script>
function validateDDList(ctlname,ddlctl)
     {
         
         if (ddlctl.value.index == 0) {
             alert(ctlname + ' Select at least one option from the list');
             ddlctl.focus();
             return false;
         }
         return true;
         

     }

</script>


         
function validate() {

if(!validateDDListt('Select at least one list from y ',<%= ddEntityCountry.ClientID %>))
     return false;

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Obadiah Christopher

Could you plz explain the que a bit more

gfranco

ASKER

Sure, I have 3 drop down list country state and city, I want to use a function that assure user to pick a record for each drop down. This function I am planning to use on master page since I have other pages to validate. So the function enforce the selection and avoid no values on submission. The message will be generic upon depend on combo selection
The form is being called at the end of wizard template finish button. Hope this helps
I hope this clarify

guru_sami

Did you try using built-in asp.net RequiredFieldValidator: http://www.c-sharpcorner.com/blogs/5385/asp-net-dropdownlist-validation-using-required-field-validat.aspx

or you only want to do it via javascript?
http://jquerybyexample.blogspot.com/2012/07/validate-aspnet-dropdownlist-using-jquery.html

gfranco

ASKER

Thanks field validate is not an option I am trying to use the same function for all of them thanks

ASKER CERTIFIED SOLUTION

guru_sami

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