Custom data binding with Teleriks Grid - asp.net-mvc-3

Question

I have an MVC3 Telerik app. This is my controller:
[GridAction]
public ActionResult Index(GridCommand command)
{
IEnumerable<Order> data = GetData(command);
var dataContext = new NorthwindDataContext();
//Required for pager configuration
ViewData["total"] = dataContext.Orders.Count();
return View(data);
}
[GridAction(EnableCustomBinding = true)]
public ActionResult _CustomBinding(GridCommand command)
{
IEnumerable<Order> data = GetData(command);
var dataContext = new NorthwindDataContext();
return View(new GridModel
{
Data = data,
Total = dataContext.Orders.Count()
});
}
//Utility method which does custom paging and sorting using Linq
private static IEnumerable<Order> GetData(GridCommand command)
{
var dataContext = new NorthwindDataContext();
IQueryable<Order> data = dataContext.Orders;
if (command.PageSize > 0)
{
data = data.Skip((command.Page - 1) * command.PageSize);
}
data = data.Take(5);
return data;
}
This is my razor View:
#model IEnumerable<Telerik.Order>
#(Html.Telerik().Grid(Model)
.Name("Grid")
.Columns(columns =>
{
columns.Bound(o => o.OrderID).Width(100);
columns.Bound(o => o.Customer.ContactName).Width(200);
columns.Bound(o => o.ShipAddress);
columns.Bound(o => o.OrderDate).Format("{0:MM/dd/yyyy}").Width(100);
})
.DataBinding(dataBinding =>
{
dataBinding.Ajax().Select("_CustomBinding", "Home").Enabled(true);
})
.Pageable(pager => pager.Total((int)ViewData["total"]))
.EnableCustomBinding(true)
.Sortable()
)
When I run the app, it loads fine, but when I click on a number in the paging row at the bottom, I get :
Error! The requested URL returned 500- Internal server error
It calls my function _CustomBinding and doesnt throw an error when i step through it. Whats causing this error?

Answer 1

This means that a server side exception has occurred in _CustomBinding method. You can check what the actual server response is - it would contain the stacktrace. Use Fiddler or your browser's developer tools to check what the server response is.