XEnumerableElementAtOrDefaultTSource Method

Returns the element at a specified index in a sequence, or the specified default value if the index is out of range.

Namespace: Linq.Extras
Assembly: Linq.Extras (in Linq.Extras.dll) Version: 5.0.0+96a4f4bfed64095342c5df107c1fe1fb95603ee5

Syntax

Copy

public static TSource ElementAtOrDefault<TSource>(
	this IEnumerable<TSource> source,
	int index,
	TSource defaultValue
)

<ExtensionAttribute>
Public Shared Function ElementAtOrDefault(Of TSource) ( 
	source As IEnumerable(Of TSource),
	index As Integer,
	defaultValue As TSource
) As TSource

[<ExtensionAttribute>]
static member ElementAtOrDefault : 
        source : IEnumerable<'TSource> * 
        index : int * 
        defaultValue : 'TSource -> 'TSource

Parameters

source: Type: System.Collections.GenericIEnumerableTSource
The sequence to return an element from.
index: Type: SystemInt32
The zero-based index of the element to retrieve.
defaultValue: Type: TSource
The default value to return if there is no element at the specified index.

Type Parameters

TSource: The type of the elements of source.

Return Value

Type: TSource
defaultValue if the index is outside the bounds of the source sequence; otherwise, the element at the specified 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 IEnumerableTSource. 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).

Reference

XEnumerable Class