There are 2 models connected by many-to-many communication. My question is: how can I implement the add? What code do I need to write for the controller and for the view? I want the user to be able to enter data both about himself and about the car. What do I need to add to be able to add information about the car? Here is my code:

public class Owner { public int OwnerID { get; set; } public string Name { get; set; } public string Surname { get; set; } public DateTime Birthday { get; set; } public int Experience { get; set; } public virtual ICollection<Car> Cars { get; set; } } public class Car { public int CarID { get; set; } public string Model { get; set; } public string Mark { get; set; } public string Type { get; set; } public int Price { get; set; } public string YearofRelease { get; set; } public virtual ICollection<Owner> Owners { get; set; } }

Controller:

 // GET: Owners/Create public ActionResult Create() { return View(); } [HttpPost] [ValidateAntiForgeryToken] public ActionResult Create([Bind(Include = "OwnerID,Name,Surname,Birthday,Experience")] Owner owner, [Bind(Include = "CarID,Model,Mark,Type,Price,YearOfRelease")] Car car ) { if (ModelState.IsValid) { owner.Cars.Add(car); db.Owners.Add(owner); db.SaveChanges(); return RedirectToAction("Index"); } return View(owner); }

Display

 @model Site.Models.Owner @{ ViewBag.Title = "Create"; } <h2>Create</h2> @using (Html.BeginForm()) { @Html.AntiForgeryToken() <div class="form-horizontal"> <h4>Owner</h4> <hr /> @Html.ValidationSummary(true, "", new { @class = "text-danger" }) <div class="form-group"> @Html.LabelFor(model => model.Name, htmlAttributes: new { @class = "control-label col-md-2" }) <div class="col-md-10"> @Html.EditorFor(model => model.Name, new { htmlAttributes = new { @class = "form-control" } }) @Html.ValidationMessageFor(model => model.Name, "", new { @class = "text-danger" }) </div> </div> <div class="form-group"> @Html.LabelFor(model => model.Surname, htmlAttributes: new { @class = "control-label col-md-2" }) <div class="col-md-10"> @Html.EditorFor(model => model.Surname, new { htmlAttributes = new { @class = "form-control" } }) @Html.ValidationMessageFor(model => model.Surname, "", new { @class = "text-danger" }) </div> </div> <div class="form-group"> @Html.LabelFor(model => model.Birthday, htmlAttributes: new { @class = "control-label col-md-2" }) <div class="col-md-10"> @Html.EditorFor(model => model.Birthday, new { htmlAttributes = new { @class = "form-control" } }) @Html.ValidationMessageFor(model => model.Birthday, "", new { @class = "text-danger" }) </div> </div> <div class="form-group"> @Html.LabelFor(model => model.Experience, htmlAttributes: new { @class = "control-label col-md-2" }) <div class="col-md-10"> @Html.EditorFor(model => model.Experience, new { htmlAttributes = new { @class = "form-control" } }) @Html.ValidationMessageFor(model => model.Experience, "", new { @class = "text-danger" }) </div> </div> <div class="form-group"> <div class="col-md-offset-2 col-md-10"> <input type="submit" value="Create" class="btn btn-default" /> </div> </div> </div> } <div> @Html.ActionLink("Back to List", "Index") </div> @section Scripts { @Scripts.Render("~/bundles/jqueryval") }

    1 answer 1

    The model of your presentation is:

     @model Site.Models.Owner

    If you need to process immediately both Owner and Car , you need to transfer the necessary data to the form. For example, you can make an intermediate model in which both Owner and Car will be :

     public class SpecialModel { public Owner Owner { get; set; } public Car Car { get; set; } }

    and pass this model to the view from the controller. Accordingly, you need to change the methods for the new code. Here is an example of what looks like your problem: pass two models to view