MVC post not adding values to model

Question

I have a simple edit form for a user model but when I post back, none of the hidden input values are being applied to model and I'm not sure why this is happening. My Razor: ``` @model CMS.Core.Models.UserProfile @using (Html.BeginForm()) { @Html.ValidationSummary(true)

User Profile @Html.HiddenFor(model => model.UserId)

@Html.LabelFor(model => model.EmailAddress)

@Html.TextBoxFor(model => model.EmailAddress, new { @class = "textbox" }) @Html.ValidationMessageFor(model => model.EmailAddress)

@Html.LabelFor(model => model.FirstName)

@Html.TextBoxFor(model => model.FirstName, new { @class = "textbox" }) @Html.ValidationMessageFor(model => model.FirstName)

} `…

Accepted Answer

The `DefaultModelBinder` only able to bind public properties.

Change your property setter to public and it should work fine:

```
[Key]
[DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]
public int UserId { get; set; }
```

If you can't do that you will need create a custom model binder which deals with private setters.

However as a better approach instead of using your `UserProfile` directly. Create a `UserProfileViewModel` where your `UserId` is public and use that in your View and Controller action. In this case you need to map between your `UserProfile` and the `UserProfileViewModel` but there are good tools exists for that task like AutoMapper.

MVC post not adding values to model

Solution

Problem