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

Returns the maximal element of the given sequence, based on the given projection and the specified comparer for projected values.

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

Syntax

C#

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

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
comparer
Type: System.Collections.Generic.IComparer(TKey)
Comparer to use to compare projected values

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

ExceptionCondition
ArgumentNullExceptionsource, selector or comparer is null
ExceptionA delegate callback throws an exception.

Remarks

This operator uses deferred execution. The results are evaluated and cached on first use to returned sequence.

See Also

Reference

EnumerableExt Class
MaxBy Overload
UltimateXR.Extensions.System.Collections Namespace