public static class MaxByExtension<ExtensionAttribute>
Public NotInheritable Class MaxByExtension[ExtensionAttribute]
public ref class MaxByExtension abstract sealed[<AbstractClassAttribute>]
[<SealedAttribute>]
[<ExtensionAttribute>]
type MaxByExtension = class end| MaxByTSource, TKey(IEnumerableTSource, FuncTSource, TKey) | 
            Returns the maximal elements of the given sequence, based on
            the given projection.
             Obsolete.  | 
| MaxByTSource, TKey(IEnumerableTSource, FuncTSource, TKey, IComparerTKey) | 
            Returns the maximal elements of the given sequence, based on
            the given projection and the specified comparer for projected values.
             Obsolete.  |