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

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

Implements IIndexScanner(T).GroupJoin

Syntax

Visual Basic
C#

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

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

Parameters

source: The second sequence to join to this collection.
keySelector: A function to extract from an item of the second sequence the value to match against this collection's key value.
resultSelector: A function to create a result element from an element of the second sequence and the collection of matching elements from this collection.

Type Parameters

T2: The type of the elements of the second sequence.
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 the second collection and the corresponding enumeration of the items of this collection joined to it.

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