M_CodeJam_Collections_CollectionExtensions_DefaultIfEmpty__1

CollectionExtensions.DefaultIfEmpty(T) Method (List(T), T)

Returns a new collection with default value if the collection is empty.

Namespace: CodeJam.Collections
Assembly: CodeJam (in CodeJam.dll) Version: 2.1.0.0

Syntax

C#

public static List<T> DefaultIfEmpty<T>(
	this List<T> collection,
	T defaultValue
)

VB

<ExtensionAttribute>
Public Shared Function DefaultIfEmpty(Of T) ( 
	collection As List(Of T),
	defaultValue As T
) As List(Of T)

F#

[<ExtensionAttribute>]
static member DefaultIfEmpty : 
        collection : List<'T> * 
        defaultValue : 'T -> List<'T> 

Parameters

 

collection

Type: System.Collections.Generic.List(T)
The collection.

defaultValue

Type: T
The default value.

Type Parameters

 

T

Type of the collection values

Return Value

Type: List(T)
A new collection with default value if the collection is empty.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type List(T). 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).

See Also

Reference

CollectionExtensions Class
DefaultIfEmpty Overload
CodeJam.Collections Namespace