gistfile1.cs

		public static IQueryable<T> Order<T>( this IQueryable<T> source, IOrderDetails co ) {
			if( co == null || co.GetOrderColumn() == null )
				return source;
			try {
				var x = Expression.Parameter( source.ElementType, "x" );
				var selector = Expression.Lambda( Expression.PropertyOrField( x, co.GetOrderColumn() ), x );
				return source.Provider.CreateQuery(
						Expression.Call( typeof( Queryable ), co.IsDescending() ? "OrderByDescending" : "OrderBy", new Type[] { source.ElementType, selector.Body.Type },
										 source.Expression, selector
							) ) as IQueryable<T>;
			} catch {
				return source;
			}
		}