MoreEnumerableMaxByTSource, TKey Method (IEnumerableTSource, FuncTSource, TKey, IComparerTKey) |
Returns the maximal element of the given sequence, based on
the given projection and the specified comparer for projected values.
Namespace:
MoreLinq
Assembly:
MoreLinq (in MoreLinq.dll) Version: 2.1.0
Syntax public static TSource MaxBy<TSource, TKey>(
this IEnumerable<TSource> source,
Func<TSource, TKey> selector,
IComparer<TKey> comparer
)
<ExtensionAttribute>
Public Shared Function MaxBy(Of TSource, TKey) (
source As IEnumerable(Of TSource),
selector As Func(Of TSource, TKey),
comparer As IComparer(Of TKey)
) As TSource
public:
[ExtensionAttribute]
generic<typename TSource, typename TKey>
static TSource MaxBy(
IEnumerable<TSource>^ source,
Func<TSource, TKey>^ selector,
IComparer<TKey>^ comparer
)
[<ExtensionAttribute>]
static member MaxBy :
source : IEnumerable<'TSource> *
selector : Func<'TSource, 'TKey> *
comparer : IComparer<'TKey> -> 'TSource
Parameters
- source
- Type: System.Collections.GenericIEnumerableTSource
Source sequence - selector
- Type: SystemFuncTSource, TKey
Selector to use to pick the results to compare - comparer
- Type: System.Collections.GenericIComparerTKey
Comparer to use to compare projected values
Type Parameters
- TSource
- Type of the source sequence
- TKey
- Type of the projected element
Return Value
Type:
TSourceThe maximal element, according to the projection.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
IEnumerableTSource. When you use instance method syntax to call this method, omit the first parameter. For more information, see
Extension Methods (Visual Basic) or
Extension Methods (C# Programming Guide).
Exceptions Remarks
If more than one element has the maximal projected value, the first
one encountered will be returned. This operator uses immediate execution, but
only buffers a single result (the current maximal element).
See Also