Question

I want to do server side sorting of a related table using MvcContrib Grid

I have

 @Html.Grid(Model.Result).Columns(column =>
{
    column.For(u => u.Name).Named("Name");
    column.For(u => u.Country.Name).Named("Country").SortColumnName("Country");
 }).Sort(Model.GridSortOptions)

This displays the table/grid correctly. However I cannot sort by Country.Name I get an error

DbSortClause expressions must have a type that is order comparable

Answer 1

I just ended up doing a work around.

I added a new property to my ViewModel called “CountryName” which maps to Country.Name. This works fine.

So my code is now

 @Html.Grid(Model.Result).Columns(column =>
{
    column.For(u => u.Name).Named("Name");
    column.For(u => u.CountryName).Named("Country");
 })

And my ViewModel

public string Name {get; set;}
public Country Country {get; set;}
public string CountryName {get; set;}