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Enumerable.Min<TSource, TResult> Method (IEnumerable<TSource>, Func<TSource, TResult>)

 
System_CAPS_noteNote

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Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.

Namespace:   System.Linq
Assembly:  System.Core (in System.Core.dll)

public static TResult Min<TSource, TResult>(
	this IEnumerable<TSource> source,
	Func<TSource, TResult> selector
)

Parameters

source
Type: System.Collections.Generic.IEnumerable<TSource>

A sequence of values to determine the minimum value of.

selector
Type: System.Func<TSource, TResult>

A transform function to apply to each element.

Return Value

Type: TResult

The minimum value in the sequence.

Type Parameters

TSource

The type of the elements of source.

TResult

The type of the value returned by selector.

Exception Condition
ArgumentNullException

source or selector is null.

If type TResult implements IComparable<T>, this method uses that implementation to compare values. Otherwise, if type TResult implements IComparable, that implementation is used to compare values.

In Visual Basic query expression syntax, an Aggregate Into Min() clause translates to an invocation of Min.

The following code example demonstrates how to use Min<TSource>(IEnumerable<TSource>, Func<TSource, Int32>) to determine the minimum value in a sequence of projected values.

System_CAPS_noteNote

This code example uses an overload of this overloaded method that is different from the specific overload that this topic describes. To extend the example to this topic, change the body of the selector function.

class Pet
{
    public string Name { get; set; }
    public int Age { get; set; }
}

public static void MinEx4()
{
    Pet[] pets = { new Pet { Name="Barley", Age=8 },
                   new Pet { Name="Boots", Age=4 },
                   new Pet { Name="Whiskers", Age=1 } };

    int min = pets.Min(pet => pet.Age);

    Console.WriteLine("The youngest animal is age {0}.", min);
}

/*
 This code produces the following output:

 The youngest animal is age 1.  
*/

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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