/// <summary> /// Creates a comparer that will sort elements in descending order based on the values returned by the provided /// selector. The values will be compared using the default comparer for the return type of the selector. /// </summary> /// <typeparam name="TValue">The value type.</typeparam> /// <param name="selector"> /// A function supplying the values for the comparer. /// </param> /// <returns>A comparer.</returns> public static IComparer <T> OrderByDescending <TValue>(Func <T, TValue> selector) => ComparerChainingExtensions.ThenByDescending(null, selector);
/// <summary> /// Creates a comparer that will sort elements in ascending order based on the values returned by the provided /// selector. The selector values will be compared using the provided comparer or the default comparer for the /// return type of the selector if no comparer is specified. /// </summary> /// <typeparam name="TValue">The value type.</typeparam> /// <param name="selector"> /// A function supplying the values for the comparer. /// </param> /// <param name="comparer"> /// The comparer to use when comparing the values returned by the selector. /// The default comparer for that type will be used if this parameter is null. /// </param> /// <returns>A comparer.</returns> public static IComparer <T> OrderBy <TValue>(Func <T, TValue> selector, IComparer <TValue> comparer) => ComparerChainingExtensions.ThenBy(null, selector, comparer);
