How Do I Use Custom Validations For Dropdown In Mvc?

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i have used dropdown list in mvc,and i need that dropdown list to be mandatory,i tried cutom validation but i m not able to get the validation message print.
Can anyone help with custom validations?

Posted 8-Mar-14 6:01am

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Kornfeld Eliyahu Peter 9-Mar-14 3:37am

Please do not cross post. If someone knows the answer you will get it...
http://www.codeproject.com/Questions/740937/How-Do-I-Use-Auto-Suggestion-Drop-Down-In-Mvc

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CBadger · Answer 1 · 2014-03-09T21:55:00

You can use a jQuery for validation on the dropdown list

HTML

jQuery.validator.addMethod("requireddropdown", function (value, element, params) {
    var valid = false;
 if ($(element).val() != params.defaultvalue)
        valid = true;
    return valid;
});

In code add this above the getter and setter of the DropDownList

C#

[RequiredDropDown(ErrorMessage = "State is required.",DefaultValue="")]