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.NET Framework Class Library

Enumerable.Last<TSource> Method (IEnumerable<TSource>)

Returns the last element of a sequence.

Namespace:  System.Linq
Assemblies:   System.Linq (in System.Linq.dll)
  System.Core (in System.Core.dll)
<ExtensionAttribute> _
Public Shared Function Last(Of TSource) ( _
	source As IEnumerable(Of TSource) _
) As TSource

Type Parameters

TSource

The type of the elements of source.

Parameters

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

An IEnumerable<T> to return the last element of.

Return Value

Type: TSource
The value at the last position in the source sequence.

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).
Exception Condition
ArgumentNullException

source is null.

InvalidOperationException

The source sequence is empty.

The Last<TSource>(IEnumerable<TSource>) method throws an exception if source contains no elements. To instead return a default value when the source sequence is empty, use the LastOrDefault method.

The following code example demonstrates how to use Last<TSource>(IEnumerable<TSource>) to return the last element of an array.

        ' Create an array of integers. 
        Dim numbers() As Integer = _
            {9, 34, 65, 92, 87, 435, 3, 54, 83, 23, 87, 67, 12, 19}

        ' Get the last item in the array. 
        Dim last As Integer = numbers.Last()

        ' Display the result.
        MsgBox(last)

        ' This code produces the following output: 
        
        ' 19

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library