Question

Honestly I hate extension methods as disscussed before.

I have a extension method as “ApplySorting”

public static IQueryable<Brand> ApplySorting(this IQueryable<Brand> data,
               IList<GroupDescriptor> groupDescriptors, 
               IList<SortDescriptor> sortDescriptors)

It has been implemented for IQueryable<Brand> it is look like nice. I need another method for Category, I should implement another method as IQueryable<Category> and this story goes.

Question; How can I define IQueryable<T> to stop repeated extension method?
It should be look like this (of course it is not valid code VS 2010 stoped me.)

public static IQueryable<T> ApplySorting(this IQueryable<T> data,
                            IList<GroupDescriptor> groupDescriptors,
                            IList<SortDescriptor> sortDescriptors) 
                where T : IEntity

Thanks in advance! 🙂

Answer 1

Try this:

public static IQueryable<T> ApplySorting<T>(this IQueryable<T> data,
                            IList<GroupDescriptor> groupDescriptors,
                            IList<SortDescriptor> sortDescriptors) 
                where T : IEntity

(I added a type variable to the method)