Question

I’m working on ASP.NET MVC 4. I’m using Data Annotations in model for validation.

There is one field name Mobile and validating using regular expression like below.

[RegularExpression(@"[0-9]{10}", ErrorMessage = "Mobile Number is Not Valid")]
public string Mobile { get; set; }

As per the application requirement above field is not mandatory but need to validate Mobile number if user insert it.

My problem is that when I submit form it displays “Mobile field is required.” but the mobile field is not decorate with [Required] attribute. So How it display as required?

What could be the reason?
How to solve it?

Answer 1

You can do it very easily using following simple jQuery..

//Remove Required field validation on pin and mobile number
    $(document).ready(function () {
        $("#Mobile").removeAttr("data-val");
    });

Pls try and let me us know if that works for you or not.

Thanks