Disassembled code with ILSpy:
Should replace
by
// Kendo.Mvc.Extensions.QueryableExtensionsprivate static DataSourceResult CreateDataSourceResult(this IQueryable queryable, DataSourceRequest request, ModelStateDictionary modelState, LambdaExpression selector){. . . . Should replace
List<AggregateDescriptor> aggregates = new List<AggregateDescriptor>();
if (aggregates != null) { aggregates.AddRange(request.Aggregates); }by
List<AggregateDescriptor> aggregates = new List<AggregateDescriptor>();
if (request.Aggregates != null) { aggregates.AddRange(request.Aggregates); }