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Enumerable.Last<TSource> Method (IEnumerable<TSource>, Func<TSource, Boolean>)

Returns the last element of a sequence that satisfies a specified condition.

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

public static TSource Last<TSource>(
	this IEnumerable<TSource> source,
	Func<TSource, bool> predicate

Type Parameters


The type of the elements of source.


Type: System.Collections.Generic.IEnumerable<TSource>
An IEnumerable<T> to return an element from.
Type: System.Func<TSource, Boolean>
A function to test each element for a condition.

Return Value

Type: TSource
The last element in the sequence that passes the test in the specified predicate function.

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.


source or predicate is null.


No element satisfies the condition in predicate.


The source sequence is empty.

The Last<TSource>(IEnumerable<TSource>, Func<TSource, Boolean>) method throws an exception if no matching element is found in source. To instead return a default value when no matching element is found, use the LastOrDefault method.

The following code example demonstrates how to use Last<TSource>(IEnumerable<TSource>, Func<TSource, Boolean>) to return the last element of an array that satisfies a condition.

      int[] numbers = { 9, 34, 65, 92, 87, 435, 3, 54, 
                             83, 23, 87, 67, 12, 19 };

      int last = numbers.Last(num => num > 80);

      outputBlock.Text += last + "\n";

       This code produces the following output:



Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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