One property with a list of model errors in mvc c#

Question

In my controller which is having a list (atmost 3) error messages related to password check will be stored in the property named Password.

IEnumerable<PasswordMessages> passwordMessage = LoanTrackerServices.CheckPasswordRequirements(model.NewPassword, model.EmailId);
if ( passwordMessage.Count() > 0 )
{
    foreach (PasswordMessages pm in passwordMessage)
    {
        ModelState.AddModelError("Password",( pm.Message));
    }
    LoginPageModel loginModel = new LoginPageModel();
    return View("Index", new HomePageModel() { Register = model, Login = loginModel });
}

But in my view i am unable to figure out how to get all those (atmost 3) error messages. Right now only the first message with in the list is displaying. here is my code in view

for (int i = 0; i < ViewData.ModelState["Password"].Errors.Count; i++)
{
     @Html.ValidationMessage("Password")
}

How to get all those error messages which are stored with in the Password?

Mike Perrenoud · Accepted Answer · 2014-01-20 18:55:13Z

5

You just need a summary instead of a message:

@Html.ValidationSummary("Password")

So get rid of this:

for (int i = 0; i < ViewData.ModelState["Password"].Errors.Count; i++)
{
    @Html.ValidationMessage("Password")
}

answered Jan 20, 2014 at 18:55

Mike Perrenoud

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9 Comments

user2619542 Over a year ago

This one works. but it is displaying heading before the messages

Mike Perrenoud Over a year ago

@user2619542, you can modify the template. Just look at the HTML/CSS that's rendered and target the rendered tags. To get rid of the heading, target the tag and set display: none.

user2619542 Over a year ago

I used the style display:none, then it is not at all displaying the error messages. I want those error messages just without the heading message

Mike Perrenoud Over a year ago

@user2619542, if you target the right element it won't hide the entire set of messages; your CSS is just wrong. Target the heading, the element you want to get rid of, specifically.

user2619542 Over a year ago

these are the styles in CSS .validation-summary-errors { font-weight: bold; color: #ff0000; display:none; } .validation-summary-valid { display: none; } i added display:non for validation-summary-errors class

|

Dima · Accepted Answer · 2014-01-21 21:31:48Z

1

@Html.ValidationSummary()

Will show all Model errors in one place what isn't desirable for the most cases.

I've written a helper method which will let you show only errors for specific field: https://gist.github.com/DimaSalakhov/8548393. It's based on standart ValidationMessageFor<>().

Add it to your project, referrence on a View and use as follows:

@Html.ValidationSummaryFor(x => x.Password)

edited Jan 21, 2014 at 21:31

answered Jan 21, 2014 at 21:21

Dima

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Comments

Rahul Uttarkar · Accepted Answer · 2017-05-27 14:01:29Z

0

@if(ViewData.ModelState.IsValidField(nameof(Model.Property)))
{
     // show some thing
}
else
{
     // show some thing else
}

Strongly typed validation check .

edited May 27, 2017 at 14:01

answered May 27, 2017 at 13:50

Rahul Uttarkar

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