I tried this code in my controller :
List<ProductListingModels> prom = new List<ProductListingModels>();
prom.Add(new ProductListingModels()
{
ID = item.ID,
Name = item.Name,
DepartmentID = item.DepartmentID.Value,
BrandID = item.BrandID.Value
});
jr.Data = prom;
jr.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
return Json(new
{
ja = jr.Data,
}, JsonRequestBehavior.AllowGet);
This is my ProductListingModel :
public class ProductListingModels:ItemEntityDataContext
{
public int ID { get; set; }
public string Name { get; set; }
public int DepartmentID { get; set; }
public int BrandID { get; set; }
}
It was an error :
A circular reference was detected while serializing an object of type.
But if I change from adding the object "prom" to adding something like string or integer, It works well. I don't know what problem happen of how to adding my objects.
Can any one show me the solution. Welcome to all your question and answer, Thanks so much.
I suspect the problem is with references ItemEntityDataContext superclass might hold to other objects. It is always a good idea to copy your data to a viewmodel class for passing into views. In your case however just use LINQ to select fields into new anonymous type and serialize with json. Something like this:
jr.Data = prom.Select(p => new
{
ID = p.ID,
Name = p.Name,
DepartmentID = p.DepartmentID,
BrandID = p.BrandID
}).ToArray();
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