GetReferencedEntityTypes Method

Returns a list of all entity types referenced by the query.

Syntax

Visual Basic
C#

'Declaration
 
<ExtensionAttribute()>
Public Shared Function GetReferencedEntityTypes( _
   ByVal query As IEntityQuery, _
   Optional ByVal includeIncludes As Boolean _
) As ISet(Of Type)

'Usage
 
Dim query As IEntityQuery
Dim includeIncludes As Boolean
Dim value As ISet(Of Type)
 
value = EntityQueryExtensions.GetReferencedEntityTypes(query, includeIncludes)

[Extension()]
public static ISet<Type> GetReferencedEntityTypes( 
   IEntityQuery query,
   bool includeIncludes
)

Parameters

query
includeIncludes: Whether to also return Included types. Default is true.

Return Value

A HashSet of types

Example

public void CheckQueryTypes() {
 
  var query = entityManager.Employees.Where(e => e.OrderSummaries.Any(os => os.Freight > 100m));
  // Will return Employee and OrderSummary types.
  var list = query.GetReferencedEntityTypes();

  var query2 = entityManager.Customers.Include(c => c.OrderSummaries);
  // Will return Customer and OrderSummary types.
  var list2 = query2.GetReferencedEntityTypes();
  // Will return only Customer type, since Includes are excluded.
  var list3 = query2.GetReferencedEntityTypes(false);
}

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

EntityQueryExtensions Class
EntityQueryExtensions Members