On the register page I have added a dropdown for vdab student: Yes / no But the validation described in the viewmodel is not working (I guess this is because I used ViewBag and not model?)
Can someone please help me to create the dropdown so I Can use this way:
@Html.DropDownFor(x => x.Something, Model.Something, "Select a component type" )
This is what I have:
IdentityModel
public class ApplicationUser : IdentityUser
{
public virtual Person Person { get; set; }
}
public class Person
{
public virtual Klas Klas { get; set; }
public int Id { get; set; }
public string Voornaam { get; set; }
public string Familienaam { get; set; }
public bool Vdab { get; set; }
}
public class Klas
{
public int Id { get; set; }
public string Omschrijving { get; set; }
}
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
public ApplicationDbContext()
: base("ConnectionString")
{
}
}
RegisterViewModel:
public class RegisterViewModel
{
[Required]
[Display(Name = "Gebruikersnaam")]
public string UserName { get; set; }
[Required]
[StringLength(100, ErrorMessage = "Het {0} moet misntens {2} Karakters lang zijn.", MinimumLength = 6)]
[DataType(DataType.Password)]
[Display(Name = "Wachtwoord")]
public string Password { get; set; }
[DataType(DataType.Password)]
[Display(Name = "Bevestig Wachtwoord")]
[Compare("Password", ErrorMessage = "De wachtwoorden komen niet overeen")]
public string ConfirmPassword { get; set; }
[Required]
[Display(Name = "Voornaam")]
public string Voornaam { get; set; }
[Required]
[Display(Name = "Familienaam")]
public string Familienaam { get; set; }
[Required]
[Display(Name = "Klas")]
public string Klas { get; set; }
[Required]
[Display(Name = "Vdab Student")]
public bool Vdab { get; set; }
}
And in the AcountController:
[AllowAnonymous]
public ActionResult Register()
{
var Vdab = new SelectList(new[] { new { ID = "1", Name = "Ja" }, new { ID = "0", Name = "Nee" }, }, "ID", "Name", 1);
ViewBag.Vdab = Vdab;
return View();
}
And finally I show the dropdown in the view with razor
<div class="form-group">
@Html.LabelFor(m => m.Vdab, new { @class = "col-md-2 control-label" })
<div class="col-md-10">
@Html.DropDownList("Vdab", @ViewBag.Vdab as SelectList, "----Maak een keuze ----")
</div>
</div>
You can use:
@Html.DropDownList("Vdab", @ViewBag.Vdab as SelectList, "----Maak een keuze ----")
Just in your controller you could do like this:
[AllowAnonymous]
public ActionResult Register()
{
List<SelectListItem> myList =new List<SelectListItem>();
myList.Add(new SelectListItem { Value = bool.TrueString, Text = "Ja" });
myList.Add(new SelectListItem { Value = bool.FalseString, Text = "Nee" });
var Vdab = new SelectList(myList,"Value","Text");
ViewBag.Vdab = Vdab;
return View();
}
Add this to your RegisterViewModelClass:
public IEnumerable<SelectListItem> VdabSelectList { get; set; }
And in the controller:
[AllowAnonymous]
public ActionResult Register()
{
RegisterViewModel viewModel = new RegisterViewModel();
viewModel.VdabSelectList = new[]
{
new SelectListItem { Value = bool.TrueString, Text = "Ja" },
new SelectListItem { Value = bool.FalseString, Text = "Nee" }
}
return View(viewModel);
}
[HttpPost]
public ActionResult Register(RegisterViewModel _viewModel)
{
//Do stuff with form data...
}
Finally, add this to your view:
<div class="form-group">
@Html.LabelFor(m => m.Vdab, new { @class = "col-md-2 control-label" })
<div class="col-md-10">
@Html.DropDownListFor(m => m.vDab, new SelectList(m.VdabSelectList, "Value", "Text"))
</div>
</div>
Disclaimer: I haven't tried a DropDownListFor with a boolean, but based on this post , it looks like it should work. I always use radio buttons for booleans, like this:
@Html.RadioButtonFor(m => m.Vdab, true)Ja
@Html.RadioButtonFor(m => m.Vdab, false)Nee
Your problem is simply that you have specified that your model type is bool. Bool is a value type, and is always going to contain a value, thus validation can never fail, no matter what. It always contains at least the default value, which is false.
You want to make the type nullable.
[Required]
[Display(Name = "Vdab Student")]
public bool? Vdab { get; set; }
Now, your required validation will work correctly, and your original (and correct) Html helper will work.
@Html.DropDownFor(x => x.Something, Model.SomethingList, "Select a component type" )
Word of warning, though.. Change your list to Model.SomethigList, using the same name for your Selected item and list can cause a lot of problems.
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