ModelState.IsValid=false. Turn off inner model validation

Question

I am using autocomplete from JQueryUIHelpers in my Asp.Net MVC project with EF6.

Model structure:

public class Employee
{
    [Key]
    public int Id { get; set; }
    [Required]
    public string FirstName { get; set; }
    [Required]
    public string SecondName { get; set; }
    [NotMapped]
    public string FullName => FirstName + " " + SecondName;
    public bool IsDriver { get; set; } = false;
    public virtual ICollection<Delivery> Deliveries { get; set; }
}
public class Delivery
{
    [Key]
    public int Id { get; set; }
    [Required]
    public Employee Driver { get; set; }
    public virtual ICollection<EggsMag> Eggs { get; set; }
}

EmployeeController:

public ActionResult Drivers(string term)
{
    var drivers = _rep.GetAll(e => e.IsDriver && (e.FirstName.StartsWith(term) || e.SecondName.StartsWith(term)));
    return Json((from d in drivers select new { label = d.FullName, value = d.Id }).ToList(), JsonRequestBehavior.AllowGet);
}

DeliveriesController:

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Edit([Bind(Include = "ID,DateOfDelivery,Driver")] Delivery delivery)
{
    if (ModelState.IsValid)
    {
        _rep.Save(delivery);
        return RedirectToAction("Index");
    }  

    return View(delivery);
}

View:

@Html.JQueryUI().AutocompleteFor(m => m.Driver.Id, Url.Action("Drivers", "Employees"), "DriverId", null)

Problem Description:
Autocomplete is working correctly but when in Edit view I send POST request I receive all the data, but ModelState.IsValid is false.
The error shows that fields of FirstName and SecondName are empty which is true because I sent just Id of existing Driver, not whole object.
Is there a way to fix it?
Maybe some way to change validation to not check inner model(Driver) fields except Driver.Id existence.

You editing data. Do NOT use data models in your view. Use a view model containing only those properties that are need in the view. [What is ViewModel in MVC?](https://stackoverflow.com/questions/11064316/what-is-viewmodel-in-mvc) — , Oct 22 '17 at 23:51
Data model != viewmodel. Use viewmodel required properties to bind into view and then pass them to controller action method, and assign related data model from viewmodel properties. — Tetsuya Yamamoto, Oct 23 '17 at 00:48
so I need something like EditDeliveryViewModel.cs? with properties: Delivery and Driver or something else because Driver is already in Delivery? — Levvy, Oct 23 '17 at 13:04
Your view model needs to contain only the properties you need in the view - e.g `int SelectedDriver` for binding to the autocomplete textbox — , Oct 24 '17 at 05:21

ModelState.IsValid=false. Turn off inner model validation

0 Answers0