MVC 值不回发到控制器

Question

This is weird, or at least i think. I have a simple password change form, which has a control for taking the user input for the password. Now, the problem is whatever the user enters, the view only posts back an empty string.

This is the control on my view

@Html.PasswordFor(model => model.Password)

Model attribute:

[Required]
[DataType(DataType.Password)]
[StringLength(20, MinimumLength = 10)]
[Display(Name = "Password")]
public string Password { get; set; }

Code:

[HttpGet]
public ActionResult Change(int userid)
{
    try
    {
        var model = GetUser(userid);
        return View(model);
    }
    catch (Exception e)
    {
        //log error
        throw;
    }
}

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Change(User model)
{
    try
    {
        model = ChangeUserCredentials(model); //break point here
        return View(model);
    }
    catch (Exception e)
    {
        //log error
        throw;
    }
}

What I have tried:

1. removed caching in IE, firefox and chrome
2. tried changing 'passwordfor' to 'editorfor'

fwiw, it was working fine until a few days back, nothing changed in the view or the code in the controller.

Answer 1

add a parameter to your password helper like this:

@Html.PasswordFor(model => model.Password,new{@name="mypassword"})

then add this parameter to your action method

public ActionResult Change(User model,string mypassword)

this will work! but it's not a really good way. if you want to do it right you must be sure you did Model Binding right.

Answer 2

I know this sounded stupid. But this is what fixed the issue, just in case anyone else faces the same:

1) Per this post , I added new { value = Model.CurrentPassword }) to the password attribute in the view 2) I am deliberately setting the password to 'null' in the GET method