ASP NET MVC 3: Form doesn't POST due to a required hidden field

Question

I want to submit a form, but the button isn't clickable. After some search I found out that this is due to the jquery validation that ASP.NET MVC has for required fields. For some weird reason ASP NET thinks my hidden field "UserId" is required. Which isn't actually true. See part of my model here:

   public class ResetPasswordModel
   {

        [.....]

     public Guid UserId
     {
       get;
       set;
     }

   }

And the page source shows this:

<input data-val="true" data-val-required="The UserId field is required." id="UserId" name="UserId" type="hidden" value="" />

Any ideas?!?

Could you post the UserId property code with it's attributes. — Jahan Zinedine
– Jahan Zinedine, Commented Jan 12, 2012 at 15:33

Adam Tuliper · Accepted Answer · 2012-01-12 15:29:53Z

1

The fact it's not a nullable type means it's required. Change the definition to Guid? (include the question mark to make it nullable) Or even better create a viewmodel that doesn't have it.

answered Jan 12, 2012 at 15:29

Adam Tuliper

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Comments

wayne.blackmon · Accepted Answer · 2012-01-12 16:56:56Z

1

I believe that a Guid is required by default because it is not nullable. Guids are usually primary keys so making them nullable is problematic. Try converting your guid ToString() so that you can use it in your view, then back to a Guid before using it in your controller or model. You may have to create a ViewModel in order to do this.

answered Jan 12, 2012 at 16:56

wayne.blackmon

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Comments

Tom Chantler · Accepted Answer · 2012-01-12 15:22:48Z

0

Are you sure there isn't a separate partial class containing MetaData which has marked the field as mandatory?

Something like this:

class UserResetPasswordModelMetaData
{
    [Required(ErrorMessage = "The UserId field is required.")]
    public Guid UserId { get; set; }
}

Search your project for the string "The UserId field is required". I bet it's there somewhere.

Also, how do you identify the user who is trying to reset their password, if not by their id?

answered Jan 12, 2012 at 15:22

Tom Chantler

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4 Comments

celticharp Over a year ago

I'm not sure what you mean by the seperate class. This is the page that was emailed to the specific user so I already have his id and I just want to pass it to my post action, that's why I have this hidden field.

Nick Bork Over a year ago

Yeah, based on the code that was provided in the question it doesnt appear to me that the UserID field would be required. There is no meta markup for it. Are you using Html.HiddeFor in your view? Have you set the value of UserID in your view model before rendering it out to the page?

celticharp Over a year ago

Dear God. I'm so sorry for my post. I just saw that I wasn't rendering my model to the view... ah, I can't believe it!!!!!!! ...

Tom Chantler Over a year ago

+1 for honesty. Lol! I did wonder! I appreciate your candour. I guess mine is the right answer then... ahem ;-)

Community · Accepted Answer · 2017-05-23 12:29:04Z

0

setup the jQuery validator to ignore hidden fields. Like so:

jQuery Validate Ignore elements with style

edited May 23, 2017 at 12:29

CommunityBot

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answered Jan 12, 2012 at 15:24

Milimetric

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Comments

Jahan Zinedine · Accepted Answer · 2012-01-12 15:32:36Z

0

Probably There is a Key attribute on top of UserId property which means it's mandatory

edited Jan 12, 2012 at 15:32

answered Jan 12, 2012 at 15:26

Jahan Zinedine

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