I am struggling to figure out how to pass back my model (unmodified) back to my controller. I have tried binding my ViewModel to many different HTML.Helpers and what not. I can get my data to bind and display, but I cannot get the ViewModel to post back to my controller.
I have the following ViewModels:
public class MediaProviderViewModel : ViewModelBase
{
public int MediaProviderId { get; set; }
public string MediaProviderName { get; set; }
public static MediaProviderViewModel FromEntity(MediaProvider entity)
{
if (entity == null)
{
return (null);
}
return (new MediaProviderViewModel()
{
MediaProviderId = entity.MediaProviderId,
MediaProviderName = entity.Name,
});
}
public static IEnumerable<MediaProviderViewModel> FromEntityList(IEnumerable<MediaProvider> entities)
{
return entities == null ? null : entities.Select(FromEntity).OrderBy(mp => mp.MediaProviderName);
}
}
public class SystemConfigViewModel : ViewModelBase
{
[DisplayName("Media Providers")]
public IEnumerable<MediaProviderViewModel> MediaProviders { get; set; }
public SystemConfigViewModel()
{
}
public static SystemConfigViewModel FromEntity(Entities db)
{
return new SystemConfigViewModel()
{
MediaProviders = MediaProviderViewModel.FromEntityList(db.MediaProviders)
};
}
}
Controller:
public class SystemConfigController : CommonBaseController
{
//
// GET: /SystemConfig/
public ActionResult Index()
{
SystemConfigViewModel model = SystemConfigViewModel.FromEntity(_db);
return View(model);
}
[HttpPost]
public ActionResult Index(SystemConfigViewModel model)
{
return View(model);
}
View:
<html>
<body>
@using (Html.BeginForm("Index", "SystemConfig"))
{
@Html.ListBoxFor(model => model.MediaProviders, new SelectList(Model.MediaProviders, "MediaProviderId", "MediaProviderName"), new { @size = "30" })
}
</body>
</html>
I have tried iterating through the items and indexing them like such:
//Surrounded in a for loop with different helpers
model => model.MediaProviders[i].MediaProviderId
Still nothing is passed back. Could I get some help as to what I am doing wrong? I tried googling but nothing really of value popped up for my case.
