CODEWITHSUNDEEP
asp.net-mvc-2entity-framework-4data-annotations
Blackcoil
Blackcoil

Reputation: 173

question on MVC data annotations, editor templates, and validation

Context: MVC 2 app using EF.

Why does some of this work, but some doesn't? The display name gets set to "Court Name" but no validation is happening, i.e. I don't see the error message. I'm thinking the editor templates are interfering with validation, or else Model.IsValid doesn't work with a complex view model.

Any thoughts?

PARTIAL CLASS:

[MetadataType(typeof(CourtMetaData))]
public partial class Court
{

    private class CourtMetaData
    {

        [Required(ErrorMessage = "Court Name is required")]
        [DisplayName("Court Name")]
        public System.String CourtName
        {
            get;
            set;
        }

    }

}

CONTROLLER:

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult New(CourtsNewViewModel court)
{
    if (ModelState.IsValid)
    {
        db.AddCourt(court);
        return View("List");
    }
    else
    {
        return View("New", court);
    }
}

VIEW MODEL:

public class CourtsNewViewModel : ViewModelBase
{

    public Court Court {get; private set; }

    public IEnumerable<CourtType> CourtTypes { get; private set; }

    public CourtsNewViewModel()
    {
        CourtTypes = db.GetAllCourtTypes();
    }

}

VIEW:

Html.EditorFor(model => model.Court.CourtName, "LongString")

EDITOR TEMPLATE:

<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<System.String>" %>
<div class="editor-row">
<div class="editor-label">
    <%= Html.LabelFor(model => model) %>
</div>
<div class="editor-field">
    <%= Html.TextBoxFor(model => model)%>
    <%= Html.ValidationMessageFor(model => model) %>
</div>
</div>

Upvotes: 0

Views: 881

Answers (1)

Darin Dimitrov
Darin Dimitrov

Reputation: 1039538

Here's the gotcha:

public ActionResult New(CourtsNewViewModel court)

The court variable is already used as you have a Court property on your model.

Now rename the parameter:

public ActionResult New(CourtsNewViewModel courtModel)

Everything should work as expected.

Upvotes: 1

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