Enumerable.SingleOrDefault Method (System.Linq)

This page is specific to

Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

Enumerable..::.SingleOrDefault Method

Returns a single, specific element of a sequence of values, or a default value if no such element is found.

Overload List

	Name	Description
	SingleOrDefault<(Of <(TSource>)>)(IEnumerable<(Of <(TSource>)>))	Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.
	SingleOrDefault<(Of <(TSource>)>)(IEnumerable<(Of <(TSource>)>), Func<(Of <(TSource, Boolean>)>))	Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.