Html HiddenFor value property not getting set

Question

I could have used   Html HiddenFor x  gt  ViewData  crn      but  I get     lt input id  ViewData crn   name  ViewData crn   type  hidden  value  500    gt   To somehow circumvent that issue id ViewData crn  and name ViewData crn    I tried doing the following  but the  value  attribute isn t getting set    Html HiddenFor x   gt  x CRN  new    value  1     Html HiddenFor x   gt  x CRN  new    Value  1      generates    lt input id  CRN  name  CRN  type  hidden  value      gt   lt input Value  500  id  CRN  name  CRN  type  hidden  value      gt    Am I doing anything wrong   Thanks

User · Answer

Simple way       Model CRN   ViewBag CRN      Html HiddenFor x   gt  x CRN

User · Answer

A simple answer is to use  Html TextboxFor but place it in a div that is hidden with style  Example  In View    lt div style  display none  gt   Html TextboxFor x  gt x CRN   lt  div gt

User · Answer

Keep in mind the second parameter to  Html HiddenFor will only be used to set the value when it can t find route or model data matching the field  Darin is correct  use view model

User · Answer

The following will work in MVC 4   Html HiddenFor x   gt  x CRN  new    Value    1         Value property is case sensitive  You need a capital  V  on  Value   Here is my model  public int CRN   get  set      Here is what is output in html when you look in the browser   lt input value  1  data-val  true  data-val-number  The field CRN must be a number   data-val-required  The CRN field is required   id  CRN  name  CRN  type  hidden  value  1   gt    Here is my method   HttpPost  public ActionResult MyMethod MyViewModel viewModel      int crn   viewModel CRN

User · Answer

Have you tried using a view model instead of ViewData  Strongly typed helpers that end with For and take a lambda expression cannot work with weakly typed structures such as ViewData   Personally I don t use ViewData ViewBag  I define view models and have my controller actions pass those view models to my views   For example in your case I would define a view model   public class MyViewModel        HiddenInput DisplayValue   false       public string CRN   get  set        have my controller action populate this view model   public ActionResult Index         var model   new MyViewModel               CRN    foo bar             return View model       and then have my strongly typed view simply use an EditorFor helper    model MyViewModel  Html EditorFor x   gt  x CRN    which would generate me    lt input id  CRN  name  CRN  type  hidden  value  foo bar    gt    in the resulting HTML

User · Answer

I believe there is a simpler solution  You must use Html Hidden instead of Html HiddenFor  Look    Html Hidden  CRN   ViewData  crn       This will create an INPUT tag of type  hidden   with id  CRN  and name  CRN   and the correct value inside the value attribute   Hope it helps

[asp.net-mvc] Html.HiddenFor value property not getting set

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