Enumerable.Last(Of TSource) Method (IEnumerable(Of TSource))
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Returns the last element of a sequence.
Assembly: System.Core (in System.Core.dll)
'Declaration <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(Of TSource)
An IEnumerable(Of T) to return the last element of.
Return Value
Type: TSourceThe 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(Of TSource). When you use instance method syntax to call this method, omit the first parameter.| Exception | Condition |
|---|---|
| ArgumentNullException | source is Nothing. |
| InvalidOperationException | The source sequence is empty. |
The Last(Of TSource)(IEnumerable(Of 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.
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