EnumerableExt.MaxBy(TSource, TKey) Method (IEnumerable(TSource), Func(TSource, TKey))

Returns the maximal element of the given sequence, based on the given projection.

Namespace: UltimateXR.Extensions.System.Collections
Assembly: UltimateXR (in UltimateXR.dll) Version: 0.0.0.0

Syntax

public static TSource MaxBy<TSource, TKey>(
	this IEnumerable<TSource> source,
	Func<TSource, TKey> selector
)

Parameters

source: Type: System.Collections.Generic.IEnumerable(TSource)
Source sequence
selector: Type: System.Func(TSource, TKey)
Selector to use to pick the results to compare

Type Parameters

TSource: Type of the source sequence
TKey: Type of the projected element

Return Value

Type: TSource
The 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 IEnumerable(TSource). 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

Exception	Condition
ArgumentNullException	source or selector is null

Remarks

This overload uses the default comparer for the projected type. This operator uses deferred execution. The results are evaluated and cached on first use to returned sequence.