Returning data from a viewmodel to one ActionResult with ASP.NET MVC

I'm an ASP.NET MVC newbie and got stuck trying to trying to return data from a viewmodel into one ActionResult.

Here's the model:

public class SitePage
    {
        public int ID { get; set; }
        public string Name { get; set; }
        public int? SiteId { get; set; }
        public string Url { get; set; }

        [ForeignKey("SiteId")]
        public SitePage Page { get; set; }


    }

and the viewmodel:

public class SitePageViewModel
    {
       public SitePage DomainPages { get; set; }
       public SitePage ContentPages { get; set; }
}

I've got this in my controller:

public ViewResult Index()
        {
            var domainPages = (from d in db.SitePages where d.SiteId == null select d).ToList();
            var contentPages = (from c in db.SitePages where c.SiteId != null select c).ToList();

                    
            return View(new SitePageViewModel {DomainPages = domainPages, ContentPages = contentPages });

        }

I can't convert the lists to the correct data type for return in the view, what am I missing?

Re: Returning data from a viewmodel to one ActionResult with ASP.NET MVC

public ViewResult Index()
        {

                    var Model=new SitePageViewModel ();
Model.domainPages=new SitePage(); // 0r retrieve somehow from database



 return View(Model);

        }

Re: Returning data from a viewmodel to one ActionResult with ASP.NET MVC

Thanks, I've changed the controller but now run into a type conversion problem when I try to get the data from the database.

public ViewResult Index()
        {
            var Model = new SitePageViewModel();

            Model.DomainPages = (from d in db.SitePages where d.SiteId == null select d).ToList();

            Model.ContentPages = (from c in db.SitePages where c.SiteId != null select c).ToList();
            
            return View(Model);

            

        }

If I use ToList() I get a "Cannot implicitly convert type 'System.Linq.IQueryable ..." error and if leave out the ToList() I get an error in my view which is expecting an IEnumerable type.

Re: Returning data from a viewmodel to one ActionResult with ASP.NET MVC

in your Model, DomainPages and ContntPages are not collections.

Re: Returning data from a viewmodel to one ActionResult with ASP.NET MVC

OK, I've changed the Model so that DomainPages and ContentPages are IEnumerable and when I run in debug mode and check the controller they are getting populated correctly.

I've got @model IEnumerable at the start of my view but I'm still getting an error
The model item passed into the dictionary is of type 'admTest.Models.SitePageViewModel', but this dictionary requires a model item of type 'System.Collections.Generic.IEnumerable`1[admTest.Models.SitePageViewModel]'.

Model

 public class SitePageViewModel
    {
        public IEnumerable<SitePage> DomainPages { get; set; }
        public IEnumerable<SitePage> ContentPages { get; set; }
    }

Controller

 public ViewResult Index()
        {
            var Model = new SitePageViewModel();

            Model.DomainPages = (from d in db.SitePages where d.SiteId == null select d).ToList();

            Model.ContentPages = (from c in db.SitePages where c.SiteId != null select c).ToList();
            
            return View(Model);
        }

View

@model IEnumerable<admTest.Models.SitePageViewModel>

Re: Returning data from a viewmodel to one ActionResult with ASP.NET MVC

I think I've worked it out - changed the reference in my view to @model admTest.Models.SitePageViewModel