GroupBy(IQueryable,IProjectionSelector) Method

Groups the elements of a sequence according to a specified key selector projection.

Syntax

Visual Basic
C#

'Declaration
 
<ExtensionAttribute()>
Public Overloads Shared Function GroupBy( _
   ByVal source As IQueryable, _
   ByVal keySelector As IProjectionSelector _
) As IQueryable

'Usage
 
Dim source As IQueryable
Dim keySelector As IProjectionSelector
Dim value As IQueryable
 
value = QueryableExtensions.GroupBy(source, keySelector)

[Extension()]
public static IQueryable GroupBy( 
   IQueryable source,
   IProjectionSelector keySelector
)

Parameters

source
keySelector

Example

var mgr = new DomainModelEntityManager();
var entityType = typeof(Customer);
var rootQuery = EntityQuery.Create(entityType);
var ps = new ProjectionSelector("Country");

var query = rootQuery.GroupBy(ps);
var results = query.Execute();

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

QueryableExtensions Class
QueryableExtensions Members
Overload List