MVCGrid.Net sorting problem - sorting

Question

I am trying to set up a grid using MVCGrid.Net, but my code using sorting gives me an error with .sortdirection options.

 public static void RegisterGrids()
    {
        MVCGridDefinitionTable.Add("CustomerGrid", new MVCGridBuilder<Customer>()
        .WithAuthorizationType(AuthorizationType.AllowAnonymous)
        .AddColumns(cols =>
        {
            cols.Add("Id").WithSorting(false).WithValueExpression(p => p.CustomersID.ToString());
            cols.Add("FirstName").WithHeaderText("First Name")
                .WithValueExpression(p => p.Name);
            cols.Add("Company").WithHeaderText("Company")
                .WithValueExpression(p => p.Company);
        })
        .WithSorting(true, "FirstName")
        .WithRetrieveDataMethod((context) =>
         {
            var options = context.QueryOptions;
            var result = new QueryResult<Customer>();
                using (var db = new Entities())
                {
                    var query = db.Customers.ToList();
                    if (!String.IsNullOrWhiteSpace(options.SortColumnName))
                    {
                        switch (options.SortColumnName.ToLower())
                        {
                            case "name":
                                 query = query.OrderBy(c=>c.Company, options.SortDirection);
                                break;

                        }
                    }
                    result.Items = query;
                }
                return result;
            })
        );
    }

Error in request in case expression. Pls help if possible. A visual studio error gives:

Error 1 'System.Collections.Generic.List' does not contain a definition for "OrderBy" and the best extension method is to overload "System.Linq.Enumerable.OrderBy (System.Collections.Generic.IEnumerable, System.Func, System.Collections.Generic .IComparer) 'has some invalid arguments C: \ MVC Tests \ MVCGrida \ MVCGrida \ App_Start \ MVCGridConfig.cs 39 46 MVCGrida

Answer 1

. , Entity Framework -, IEnumerable, . , . , .

:

switch (options.SortColumnName.ToLower())
{
    case "name":
           if (options.SortDirection == SortDirection.Asc)
                 query = query.OrderBy(c=>c.Company);
           else if (options.SortDirection == SortDirection.Dsc)
                 query = query.OrderByDescending(c=>c.Company);    
            break;                                 
 }

, .