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Entity Framework 6: entities and relationships

I am a solo and very beginner learner. I am trying to create a simple code first app with a database using EF6. I cannot understand how to insert the data of a entity inside another by the frontend.
I have two entities:
public class Movie
{
[Key]
public int Id { get; set; }
public string Title{ get; set; }
public int ActorId { get; set; }
public ICollection<Actor> Actors { get; set; }
}
public class Actor
{
[Key]
public int Id { get; set; }
public string Name { get; set; }
[ForeignKey("MovieId")]
public ICollection<Movie> Movies { get; set; }
}
The controller.
public ActionResult AddMovie()
{
var actorsList = (from Name in ctx.Attors select Name).ToList();
ViewBag.Actors = new SelectList(actorsList, "Name", "Name");
return View(new Film());
}
[HttpPost]
public ActionResult PerformAddMovie(Movie m)
{
try
{
ctx.Movies.Add(m);
ctx.SaveChanges();
return RedirectToAction("Index", "Home");
}
catch(Exception ex)
{
ModelState.AddModelError("", ex.Message);
}
return RedirectToAction("Index", "Home");
}
#model Cinema.Models.Movie
#{
ViewBag.Title = "AddMovie";
}
<h2>AddFilm</h2>
#{
var list = ViewBag.Actors as SelectList;
}
#using (Html.BeginForm("PerformAddMovie", "Movie", FormMethod.Post))
{
#Html.AntiForgeryToken()
<div class="form-horizontal">
<h4>Film</h4>
<hr />
#Html.ValidationSummary(true, "", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(model => model.Title, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Title, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Title, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.ActorId, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.ActorId, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.ActorId, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.Actors, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.DropDownListFor(m => m.Actors, list, "---Select---", new { #class = "form-control" })
#Html.ValidationMessageFor(model => model.Actors, "", 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")
}
After adding some movies into the database by the frontend web page, in the addmovie web page I can select one of them by the dropdown list, but when I save the movie nothing happens inside the third table created with movieid and actorid, it is always empty.
What am I doing wrong?

The Model is wrong
public class Movie
{
[Key]
public int Id { get; set; }
public string Title{ get; set; }
public int ActorId { get; set; }
public virtual Actor Actor { get; set; } // It should be one to one relationship
}
public class Actor
{
[Key]
public int Id { get; set; }
public string Name { get; set; }
//[ForeignKey("MovieId")] This is unneccessary
public ICollection<Movie> Movies { get; set; }
}
Then u can select the Actor Id as key while display actor name in the select list
ViewBag.Actors = new SelectList((from s in db.Actor
select new {Id = s.Id, Name = s.Name }),
"Id", "Name");
Remove this under your html as the Id is attached to the dropdown list
<div class="form-group">
#Html.LabelFor(model => model.ActorId, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.ActorId, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.ActorId, "", new { #class = "text-danger" })
</div>
</div>
change the dropdownlist to this
<div class="form-group">
#Html.LabelFor(model => model.ActorId, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.DropDownListFor(m => m.ActorId, (Selectlist)ViewBag.Actor, "---Select---", new { #class = "form-control" })
#Html.ValidationMessageFor(model => model.ActorId, "", new { #class = "text-danger" })
</div>
</div>

C# MVC can't retrieve data from view to controller [duplicate]

This question already has answers here:
Asp.Net MVC: Why is my view passing NULL models back to my controller?
(2 answers)
Closed 4 years ago.
I am new to ASP.Net and I am sure this is a very basic question. I have a employee crud views . In create view i was created viewModel to pass different two model . One Model display emloyee and another model connect to db and retrieve all departments to my view . But I can't retrieve data to my employee create controller area. Vs send this err Abc.Models.MyViewModel.Employee.get returned null. On Debug.Print(employee.Employee.Name) line.
Here my Models ;
Employee.cs
public class Employee
{
public int Id { get; set; }
[Required]
public string Name { get; set; }
[Required]
public string Surname { get; set; }
[Required]
public string phoneNumber { get; set; }
public string Detail { get; set; }
//Bu kısımda veri tabanı ilişkisi 1 to many olacak
public int DepartmentId { get; set; }
public Department Department { get; set; }
}
Department.cs
public class Department
{
public int Id { get; set; }
public string depName { get; set; }
public List<Employee> Employees { get; set; }
}
MyViewModel.cs
public class MyViewModel
{
public Employee Employee { get; set; }
public IEnumerable<Department> departments { get; set; }
}
I added dropboxlist on my create.cshtml area with MyViewModel and i can't retrieve all data on my controller .
Here my EmployeeController.cs ;
// GET: Employee/Create
[HttpGet]
public ActionResult Create()
{
MyViewModel viewModel = new MyViewModel();
Employee emp = new Employee();
viewModel.Employee = emp;
viewModel.departments = db.Departments;
return View(viewModel);
}
// POST: Employee/Create
// To protect from overposting attacks, please enable the specific properties you want to bind to, for
// more details see https://go.microsoft.com/fwlink/?LinkId=317598.
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create(/*[Bind(Include = "Id,Name,Surname,phoneNumber,Department,Detail")]*/ MyViewModel employee)
{
//string emName = employee.Employee.Name;
Debug.Print(employee.Employee.Name);
if (ModelState.IsValid)
{
db.Employees.Add(employee.Employee);
db.SaveChanges();
return RedirectToAction("Index");
}
return View(employee);
}
Here Create.cshtml "this html codes are in #using (Html.BeginForm()");
#model TelefonRehberi.Models.MyViewModel
<div class="form-horizontal">
<h4>Employee</h4>
<hr />
#Html.ValidationSummary(true, "", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(model => model.Employee.Name, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Employee.Name, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Employee.Name, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.Employee.Surname, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Employee.Surname, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Employee.Surname, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.Employee.phoneNumber, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Employee.phoneNumber, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Employee.phoneNumber, "", new { #class = "text-danger" })
</div>
</div>
<!--Dropdown List Olacak-->
<div class="form-group">
#Html.LabelFor(model => model.Employee.Department, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
<!--Burada zorlandım umarım doğru kullanım olmuştur.-->
#Html.DropDownListFor(m => m.Employee.Department, new SelectList(Model.departments.Select(i => i.depName)), " - Select or Add -", new { #class = "form-control" })
#Html.ValidationMessageFor(model => model.Employee.Department, "", new { #class = "text-danger" })
</div>
</div>
<!--Dropdown List Sonu Ayarlamalar Yapılacak.-->
<div class="form-group">
#Html.LabelFor(model => model.Employee.Detail, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Employee.Detail, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Employee.Detail, "", 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>

Add Form and try to do
#using (Html.BeginForm("ActionName","ControllerName", FormMethod.Post))
{
<div class="form-horizontal">
<!--add your other code here -->
<!--add your other code here -->
<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>
}
HTML Forms are required, when you want to collect some data from the site visitor. For example, during user registration you would like to collect information such as name, email address, credit card, etc.
A form will take input from the site visitor and then will post it to a back-end application such as CGI, ASP Script or PHP script etc. The back-end application will perform required processing on the passed data based on defined business logic inside the application.
There are various form elements available like text fields, textarea fields, drop-down menus, radio buttons, checkboxes, etc.

Ok, you were really close. In Create method you need to create Employee employee and not MyViewModel employee. So in controller just put this Create method:
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create(Employee employee)
{
Debug.Print(employee.Name);
if (ModelState.IsValid)
{
//db.Employees.Add(employee);
//db.SaveChanges();
return RedirectToAction("Index");
}
return View(employee);
}
Then binding will work just fine and you will get your employee from the form.
Just in case bellow is also the code for the form in the Create View.
<h2>Create</h2>
#using (Html.BeginForm("Create", "Employee", FormMethod.Post))
{
<div class="form-horizontal">
<h4>Employee</h4>
<hr />
#Html.ValidationSummary(true, "", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(model => model.Employee.Name, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Employee.Name, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Employee.Name, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.Employee.Surname, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Employee.Surname, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Employee.Surname, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.Employee.phoneNumber, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Employee.phoneNumber, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Employee.phoneNumber, "", new { #class = "text-danger" })
</div>
</div>
<!--Dropdown List Olacak-->
<div class="form-group">
#Html.LabelFor(model => model.Employee.Department, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
<!--Burada zorlandım umarım doğru kullanım olmuştur.-->
#Html.DropDownListFor(m => m.Employee.Department, new SelectList(Model.departments.Select(i => i.depName)), " - Select or Add -", new { #class = "form-control" })
#Html.ValidationMessageFor(model => model.Employee.Department, "", new { #class = "text-danger" })
</div>
</div>
<!--Dropdown List Sonu Ayarlamalar Yapılacak.-->
<div class="form-group">
#Html.LabelFor(model => model.Employee.Detail, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Employee.Detail, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Employee.Detail, "", 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>
}

Inserting Partial View inside another Partial View Issues (Collection.cshtml ISSUE)

I have PROPERTY VM which contains List<FounderInvestmentViewModel>.I have successfully inserted the partial view of FounderInvestmentViewModel into the Main Create Property view.
FounderInvestmentViewModel in turn contains List<InstallmentDetailsViewModel>. I have created the Partial View for InstallmentDetailsViewModel as _InstallmentDetails.cshtml and all the necessary actions.
I want to insert the _InstallmentDetails.cshtml into the partial view of FounderInvestmentViewModel which is in turn inserted into the Main View.
First let us take a look at the codes that I have used so far :--
Property View Model:-
public class PropertyViewModel
{
public int? Id { get; set; }
public string PropertyTitle { get; set; }
....other attributes....
public List<FounderInvestmentViewModel> FounderInvestments { get; set; } = new List<FounderInvestmentViewModel>();
}
FounderInvestmentViewModel:-
public class FounderInvestmentViewModel
{
public int? Id { get; set; }
public int InvestorId { get; set; }
public double Investment { get; set; }
public int InstallmentPeriod { get; set; }
public IEnumerable<SelectListItem> FounderInvestorList { get; set; }
public List<InstallmentDetailsViewModel> InstallmentDetails { get; set; } = new List<InstallmentDetailsViewModel>();
}
InstallmentDetailsViewModel:-
public class InstallmentDetailsViewModel
{
public int? Id { get; set; }
[Display(Name = "Pay Date")]
public List<DateTime> PayDates { get; set; }
[Required]
public List<double> InstallmentAmounts { get; set; }
}
PartialView for InstallmentDetails (_InstallmentDetails.cshtml):-
#model propertyMgmt.ViewModel.InstallmentDetailsViewModel
<div class="installmentDetails">
#using (Html.BeginCollectionItem("InstallmentDetails"))
{
#Html.HiddenFor(m => m.Id, new { #class = "id" })
<div class="form-group">
#Html.LabelFor(m => m.InstallmentAmounts, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(m => m.InstallmentAmounts, new { htmlAttributes = new { #class = "form-control", #type = "number" } })
#Html.ValidationMessageFor(m => m.InstallmentAmounts, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(m => m.PayDates, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(m => m.PayDates, new { htmlAttributes = new { #class = "form-control", #placeholder = "01/02/2017" } })
#Html.ValidationMessageFor(m => m.PayDates, "", new { #class = "text-danger" })
</div>
</div>
}
</div>
This _InstallmentDetails.cshtml is inserted into this _FounderInvestmentDetails.cshtml which is PartialView for FounderInvestmentDetails View Model:-
#model propertyMgmt.ViewModel.FounderInvestmentViewModel
<div class="founderInvestmentDetails">
#using (Html.BeginCollectionItem("FounderInvestments"))
{
#Html.HiddenFor(m => m.Id, new { #class = "id" })
<div class="form-group">
#Html.LabelFor(m => m.InvestorId, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.DropDownListFor(m => m.InvestorId, Model.FounderInvestorList, "Select Investor", htmlAttributes: new { #class = "form-control" })
#Html.ValidationMessageFor(m => m.InvestorId, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(m => m.Investment, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(m => m.Investment, new { htmlAttributes = new { #class = "form-control", #type = "number" } })
#Html.ValidationMessageFor(m => m.Investment, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(m => m.InstallmentPeriod, htmlAttributes: new { #class = "control-label col-md-2", #type = "number" })
<div class="col-md-10">
#Html.EditorFor(m => m.InstallmentPeriod, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(m => m.InstallmentPeriod, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group" id="installmentDetailsDiv">
#foreach (var InstallmentDetails in Model.InstallmentDetails)
{
#Html.Partial("_InstallmentDetails", InstallmentDetails)
}
</div>
<div class="form-group col-md-10">
<input type="button" class="btn btn-info btn-xs" value="Add Installment Details" onclick="addInstallmentDetails()" />
</div>
}
</div>
This is the MAIN CREATE VIEW :-
#model propertyMgmt.ViewModel.PropertyViewModel.PropertyViewModel
#{
ViewBag.Title = "Create";
}
<script src="~/Areas/Admin/themes/jquery/jquery.min.js"></script>
<h2>Property</h2>
#using (Html.BeginForm("Create", "Property", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
#Html.AntiForgeryToken()
<div class="form-horizontal">
<h4>Add Property</h4>
<hr />
#Html.ValidationSummary(true, "", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(model => model.PropertyTitle, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.PropertyTitle, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.PropertyTitle, "", new { #class = "text-danger" })
</div>
</div>
.....Other form Groups.....
<div id="founderInvestmentDetails">
#foreach(var FounderInvestments in Model.FounderInvestments)
{
#Html.Partial("_FounderInvestmentDetails", FounderInvestments)
}
</div>
<div class="form-group col-md-10" >
<input type="button" class="btn btn-info btn-xs" value="Add Founder Investors" onclick="addFounderInvestors()" />
</div>
</div>
}
This is My JS Code in the Main View:-
function addFounderInvestors() {
var url = '#Url.Action("FounderInvestmentDetails")';
var form = $('form');
var founders = $('#founderInvestmentDetails');
$.get(url, function (response) {
founders.append(response);
// Reparse the validator for client side validation
form.data('validator', null);
$.validator.unobtrusive.parse(form);
});
};
function addInstallmentDetails() {
var url = '#Url.Action("InstallmentDetails")';
var form = $('form');
var installments = $('#installmentDetailsDiv');
$.get(url, function (response) {
installments.append(response);
// Reparse the validator for client side validation
form.data('validator', null);
$.validator.unobtrusive.parse(form);
});
};
Controller Code :-
public PartialViewResult FounderInvestmentDetails()
{
var model = new FounderInvestmentViewModel {
FounderInvestorList = _investorQueryProcessor.GetInvestorByType(1).Select(x => new SelectListItem
{
Value = x.Id.ToString(),
Text = x.InvestorName
})
};
//return PartialView(model);
return PartialView("_FounderInvestmentDetails", model);
}
public PartialViewResult InstallmentDetails()
{
return PartialView("_InstallmentDetails",new InstallmentDetailsViewModel());
}
public ActionResult Create()
{
if (Session["AdminName"] != null)
{
//ViewBag.Investors = SelectListItems;
List<FounderInvestmentViewModel> model = new List<FounderInvestmentViewModel>();
List<InstallmentDetailsViewModel> model2 = new List<InstallmentDetailsViewModel>();
return View(new PropertyViewModel());
}
else return Redirect("/Account/Login");
}
EDIT:-
Sorry this is what is throwing the exception -->> Collection.cshtml
PROCESS:- In the Main View, "Add Founder Investor Buttons" on click event adds the partial view _FounderInvestmentDetails.cshtml successfully.Now the "Add Installment Details" button is appended.Upon clicking this "Add Installment Details" button _InstallmentDetails.cshtml partial view should be appended,BUT this part is not working. When I click this button, I get the error "Object reference not set to an instance of an object" in the following code:-
#using HtmlHelpers.BeginCollectionItem
<ul>
#foreach (object item in Model)-->>ERROR CODE
{
<li>
#using (Html.BeginCollectionItem(Html.ViewData.TemplateInfo.HtmlFieldPrefix))
{
#Html.EditorFor(_ => item, null, "")
}
</li>
}
</ul>

The Paydates and Installments does not need to be <List> as it already is a PartialView and can be added multiple times.
public class InstallmentDetailsViewModel {
public int? Id { get; set; }
[Display(Name = "Pay Date")]
public List<DateTime> PayDates { get; set; }
[Required]
public List<double> InstallmentAmounts { get; set; }
}

ASP.NET Collection empty after POST

Despite incorporating all advice I found in other questions and this article
the List vsValues passed to the view is always empty after POST.
View
#model OTS.ParcelOrder
#{
ViewBag.Title = "Create";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<h2>Create</h2>
#using (Html.BeginForm())
{
#Html.AntiForgeryToken()
<div class="form-horizontal">
<h4>ParcelOrder</h4>
<hr />
#Html.ValidationSummary(true, "", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(model => model.otsID, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.otsID, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.otsID, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.parcelID, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.parcelID, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.parcelID, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.recipientCountry, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.recipientCountry, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.recipientCountry, "", new { #class = "text-danger" })
</div>
</div>
#for (int i = 0; i < Model.vsValues.Count; i++)
{
#Html.Label(Model.ParcelOrder_VSFields.ElementAt(i).VendorSpecifiedInfoField.fieldName,
htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.vsValues[i], new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.vsValues[i], "", new { #class = "text-danger" })
</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>
Controller
// GET: ParcelOrders/Create
public ActionResult Create(int vendorId = 1)
{
ParcelOrder order = new ParcelOrder(vendorId);
return View(order);
}
// POST: ParcelOrders/Create
// Aktivieren Sie zum Schutz vor übermäßigem Senden von Angriffen die spezifischen Eigenschaften, mit denen eine Bindung erfolgen soll. Weitere Informationen
// finden Sie unter http://go.microsoft.com/fwlink/?LinkId=317598.
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create(ParcelOrder parcelOrder)
{
parcelOrder.customerID = User.Identity.GetUserId();
if (ModelState.IsValid)
{
db.ParcelOrder.Add(parcelOrder);
db.SaveChanges();
return RedirectToAction("Index");
}
return View(parcelOrder);
}
public partial class ParcelOrder
{
private Entities db = new Entities();
public List<string> vsValues = new List<string>();
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public ParcelOrder()
{
this.ParcelOrder_VSFields = new List<ParcelOrder_VSFields>();
}
public ParcelOrder(int vendorId)
{
this.ParcelOrder_VSFields = new List<ParcelOrder_VSFields>();
var vendorQuery = from vsif in db.VendorSpecifiedInfoField
where vsif.vendorID == vendorId
select vsif;
foreach (var vsif in vendorQuery)
{
vsValues.Add("");
this.ParcelOrder_VSFields.Add(new OTS.ParcelOrder_VSFields
{
vsFieldID = vsif.id,
VendorSpecifiedInfoField = vsif,
value = ""
});
}
}
public string otsID { get; set; }
public string parcelID { get; set; }
public string customerID { get; set; }
public string recipientCountry { get; set; }
public virtual AspNetUsers AspNetUsers { get; set; }
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
public virtual ICollection<ParcelOrder_VSFields> ParcelOrder_VSFields { get; set; }
}
}
Note
The values are supposed to be POSTed in the List vsValues and will later be set as properties of ParcelOrder_VSFields inside the controller to avoid POSTing redundant information.

It's because you are posting nothing to no where look at that
#using (Html.BeginForm())
Should rather be like:
#using (Html.BeginForm("Create","ParcelOrders",FormMethod.Post))
Update
Also after that. Your Model looks wrong to me, if you want to pass values to a list i suggest you have a list property of same kind [this property needs to be with in your model ParcelOrder and not virtual]. then within the parameter-less constructor of the class do your foreach. track it within every step you see your issue.

ASP.NET MVC 5 : Editing multiple records in a view and model binding (Bulk data update)

I need correction on the code below.
I have 2 classes "Employee" and "Child".
When I want to create a new Employee, I would like to be able to create in that same form the related Child (2 Children maximum).
Below are the models
public class Employee
{
public int EmployeeID { get; set; }
public string Name { get; set; }
public string Surname { get; set; }
public int ChildID { get; set; }
public virtual ICollection<Child> Childs { get; set; }
}
public class Child
{
public int ChildID { get; set; }
public string NameChild { get; set; }
public string SurnameChild { get; set; }
public virtual Employee Employee { get; set; }
}
The Employee controller
public class EmployeController : Controller
{
private ComideContext db = new ComideContext();
// GET: Employe/Create
public ActionResult Create()
{
List<Child> model = new List<Child>();
return View(model);
}
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create([Bind(Include = "EmployeID,Name,Surname,ChildID")] Employee employee)
{
if (ModelState.IsValid)
{
db.Employes.Add(employe);
db.SaveChanges();
return RedirectToAction("Index");
}
return View(employe);
}
}
The View of the Employee form
#using (Html.BeginForm())
{
#Html.AntiForgeryToken()
<div class="form-horizontal">
<h4>Employe</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>
#for (int i=0; i<2; i++ )
{
<div class="form-group">
#Html.LabelFor(model => model.NameChild, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.NameChild, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.NameChild, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.SurnameChild, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.SurnameChild, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.SurnameChild, "", 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>
}
Any help/thoughts would be most appreciated.
Thank you.

Disclaimer: I've done this on MVC 3. I don't know if there is an easier way to do it in MVC 5.
You will need to index the children in the view code so when you submit the form the model binder knows how to construct the Employee object.
This could be done this way:
for (var i = 0 ; i < collectionSize; i++)
{
#Html.EditorFor(child => Model.Childs[i].ChildID)
#Html.ValidationMessageFor(child => Model.Childs[i].ChildID)
[....]
}
This would require your collection to be initialized when passed to the view.
Another way you can bind to collection is to programatically build the html components' name to include their index in the list.
See the example below:
<input name="Employee.Childs[0].ChildID" >
<input name="Employee.Childs[1].ChildID" >