MVC MultipleModel DropdownlistFor SaveChanges() - asp.net-mvc

Question

HI i Have a MultipleModel View with CompanyName and EmployeeRange. CompanyName contains names of companies with a Relationship link to EmployeeRange (int) Field.
The Employee Range is basically
0-9
10-19
20-49
I can create and SaveChanges for a new Company Name Field.
Please help With Saving Selected value from the EmployeeRange DropDownListFor to DB.
Here is the Code
//MultipleModel.cs
public partial class MultipleModel
{
public MultipleModel()
{
CompanyEntities = new company();
EmployeeEntities = new Employee();
}
public company CompanyEntities { get; set; }
public Employee EmployeeEntities { get; set; }
}
//CompanyController.cs
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult RegisterCompany(MultipleModel model)
{
if (ModelState.IsValid)
{
//GET VARIBALE FROM DB
var addComanyName = db.companies.Add(model.CompanyEntities);
//GET VARIABLLE
addComanyName.COMPANY_NAME = model.CompanyEntities.COMPANY_NAME;
//ADD VARIBALE TO DB
db.companies.Add(addComanyName);
db.SaveChanges();
return RedirectToAction("index");
}
return View();
}
//RegisterCompany.cshtml
#model EISystem.Models.MultipleModel
#Html.DropDownListFor(m => m.CompanyEntities, new SelectList(ViewBag.products, "Employees_Range_ID", "Employees_Range"), "Select Number of Employees")
?? How Do i view the DropDownListFor so that selected Value can be POST to Controller and later be saved to DB?

Answer 1

You should use another class which is ViewModel for your MultipleModel class.
Like:
public class MultipleModelViewModel
{
public int SelectedProductId { get; set; }
public List<Products> ProductList{ get; set; }
public string Name { get; set; }
}
In a View
#model MultipleModelViewModel
#using (Html.BeginForm("RegisterCompany", "Company", FormMethod.Post))
{
#Html.AntiForgeryToken()
<div class="form-group">
#Html.LabelFor(model => model.SelectedProductId , htmlAttributes: new { #class = "form-control" })
#Html.DropDownListFor(model => model.SelectedProductId, new SelectList(Model.ProductList, "Id", "Name"), "Select Product", new { #class = "form-control " })
</div>
<div class="form-group">
#Html.LabelFor(model => model.Name, new { #class = "form-control " })
#Html.TextBoxFor(model => model.Name, new { #class = "form-control" })
</div>
<button type="Submit" class="btn btn-success " id="Save-btn">
Save
</button>
}
Controller:
//Get
public ActionResult RegisterCompany()
{
var model = new MultipleModelViewModel (){
Name = model.Name,
Products = db.Products.Select(x=>new {Id=x.Id, Name=x.Name).ToList()
};
return View(model);
}
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult RegisterCompany(MultipleModelViewModel model)
{
if (ModelState.IsValid)
{
var company = new Company(){
Name = model.Name,
Product = db.Products.Find(model.SelectedProductId)
};
db.companies.Add(company);
db.SaveChanges();
return RedirectToAction("index");
}
return View();
}