Попробуйте со следующим
public ActionResult All(string sidx, string sord, int page, int rows)
{
IQueryable<Ticket> repository = ZTRepository.GetAllTickets();
int totalRecords = repository.Count();
// first sorting the data as IQueryable<Ticket> without converting ToList()
IQueryable<Ticket> orderdData = repository;
System.Reflection.PropertyInfo propertyInfo =
typeof(Ticket).GetProperty (sidx);
if (propertyInfo != null) {
orderdData = String.Compare(sord,"desc",StringComparison.Ordinal) == 0 ?
(from x in repository
orderby propertyInfo.GetValue (x, null) descending
select x) :
(from x in repository
orderby propertyInfo.GetValue (x, null)
select x);
}
// if you use fields instead of properties, then one can modify the code above
// to the following
// System.Reflection.FieldInfo fieldInfo =
// typeof(Ticket).GetField (sidx);
// if (fieldInfo != null) {
// orderdData = String.Compare(sord,"desc",StringComparison.Ordinal) == 0 ?
// (from x in repository
// orderby fieldInfo.GetValue (x, null) descending
// select x) :
// (from x in repository
// orderby fieldInfo.GetValue (x, null)
// select x);
//}
// paging of the results
IQueryable<Ticket> pagedData = orderdData
.Skip ((page > 0? page - 1: 0) * rows)
.Take (rows);
// now the select statement with both sorting and paging is prepared
// and we can get the data
var rowdata = ( from ticket in tickets
select new {
id = ticket.ID,
cell = new String[] {
ticket.ID.ToString(), ticket.Hardware, ticket.Issue,
ticket.IssueDetails, ticket.RequestedBy,
ticket.AssignedTo, ticket.Priority.ToString(),
ticket.State
}
}).ToList();
var jsonData = new {
total = page,
records = totalRecords,
total = (totalRecords + rows - 1) / rows,
rows = pagedData
};
return Json(jsonData, JsonRequestBehavior.AllowGet);
}
Здесь я предполагаю, что тип объекта вашего билета Ticket
.