MoreEnumerableFallbackIfEmptyT(IEnumerableT, IEnumerableT) Method
Returns the elements of a sequence, but if it is empty then
returns an alternate sequence of values.
Namespace: MoreLinqAssembly: MoreLinq (in MoreLinq.dll) Version: 4.0.0+092a40d82a1b280568ffa006d9a210bdec0792cd
public static IEnumerable<T> FallbackIfEmpty<T>(
this IEnumerable<T> source,
IEnumerable<T> fallback
)
<ExtensionAttribute>
Public Shared Function FallbackIfEmpty(Of T) (
source As IEnumerable(Of T),
fallback As IEnumerable(Of T)
) As IEnumerable(Of T)
public:
[ExtensionAttribute]
generic<typename T>
static IEnumerable<T>^ FallbackIfEmpty(
IEnumerable<T>^ source,
IEnumerable<T>^ fallback
)
[<ExtensionAttribute>]
static member FallbackIfEmpty :
source : IEnumerable<'T> *
fallback : IEnumerable<'T> -> IEnumerable<'T>
- source IEnumerableT
- The source sequence.
- fallback IEnumerableT
- The alternate sequence that is returned
if source is empty.
- T
- The type of the elements in the sequences.
IEnumerableT
An
IEnumerableT that containing fallback values
if
source is empty; otherwise,
source.
In Visual Basic and C#, you can call this method as an instance method on any object of type
IEnumerableT. 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).