What does this model error says in asp.net mvc? - asp.net-mvc

Question

My Html action link takes me to a view where i can see the details..
For Ex:http://localhost:1985/Materials/Details/4
But it shows error,
The model item passed into the dictionary is of type
'System.Data.Linq.DataQuery`1[CrMVC.Models.ConstructionRepository+Materials]'
but this dictionary requires a model item of type
'CrMVC.Models.ConstructionRepository+Materials'.
And my model is...
public IQueryable<Materials> GetMaterial(int id)
{
return from m in db.Materials
join Mt in db.MeasurementTypes on m.MeasurementTypeId equals Mt.Id
where m.Mat_id == id
select new Materials()
{
Id = Convert.ToInt64(m.Mat_id),
Mat_Name = m.Mat_Name,
Mes_Name = Mt.Name,
};
}
public class Materials
{
private Int64 id;
public string mat_Name;
public string mes_Name;
public Int64 Id
{
get
{
return id;
}
set
{
id = value;
}
}
public string Mat_Name
{
get
{
return mat_Name;
}
set
{
mat_Name = value;
}
}
public string Mes_Name
{
get
{
return mes_Name;
}
set
{
mes_Name = value;
}
}
}
}
and my controller method...
public ActionResult Details(int id)
{
var material = consRepository.GetMaterial(id).AsQueryable();
return View("Details", material);
}
Any suggestion what am i missing here?

Answer 1

Your GetMaterial(id) method should probably return just one Material instance because your View expects just one instance. E.g:
public Materials GetMaterial(int id)
{
return (from m in db.Materials
join Mt in db.MeasurementTypes on m.MeasurementTypeId equals Mt.Id
where m.Mat_id == id
select new Materials()
{
Id = Convert.ToInt64(m.Mat_id),
Mat_Name = m.Mat_Name,
Mes_Name = Mt.Name,
}).FirstOrDefault();
}