GroupJoin<T2,TResult>(IIndexScanner<T2>,Func<T,IEnumerable<T2>,TResult>) Method

Correlates the items of this indexed collection with the items of another indexed collection and groups the results by the item of this collection.

Implements IIndexScanner(T).GroupJoin

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Function GroupJoin
    (Of T2,TResult)( _
   ByVal source As IIndexScanner(Of T2), _
   ByVal resultSelector As System.Func(Of T,IEnumerable(Of T2),TResult) _
) As System.Collections.Generic.IEnumerable(Of TResult)

public System.Collections.Generic.IEnumerable<TResult> GroupJoin<T2,TResult>( 
   IIndexScanner<T2> source,
   System.Func<T,IEnumerable<T2>,TResult> resultSelector
)

Parameters

source: The second indexed collection to join to this collection.
resultSelector: A function to create a result element from an element from this collection and a collection of matching elements from the second collection.

Type Parameters

T2: The type of the elements of the second collection.
TResult: The type of the result elements.

Return Value

Enumeration of objects obtained by applying the result selector to group pairs, where each pair consists of an item of this collection and the corresponding enumeration of the items of the second collection joined to it.

Remarks

Matching of two elements is performed by matching their keys.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

Index<T> Class
Index<T> Members
Overload List