OrganizationServiceContextExtensions.IsAttached<TSource, TTarget> Method (OrganizationServiceContext, TSource, Expression<Func<TSource, IEnumerable<TTarget>>>, TTarget)

Applies To: Dynamics CRM 2015

Determines whether a relationship is attached and therefore being tracked by the OrganizationServiceContext.

Namespace:   Microsoft.Xrm.Client
Assembly:  Microsoft.Xrm.Client (in Microsoft.Xrm.Client.dll)

Syntax

public static bool IsAttached<TSource, TTarget>(
    this OrganizationServiceContext context,
    TSource source,
    Expression<Func<TSource, IEnumerable<TTarget>>> propertySelector,
    TTarget target
)
where TSource : Entity
where TTarget : Entity

public:
generic<typename TSource, typename TTarget>
where TSource : Entity
where TTarget : Entity
[ExtensionAttribute]
static bool IsAttached(
    OrganizationServiceContext^ context,
    TSource source,
    Expression<Func<TSource, IEnumerable<TTarget>^>^>^ propertySelector,
    TTarget target
)

static member IsAttached<'TSource, 'TTarget when 'TSource : Entity when 'TTarget : Entity> : 
        context:OrganizationServiceContext *
        source:'TSource *
        propertySelector:Expression<Func<'TSource, IEnumerable<'TTarget>>> *
        target:'TTarget -> bool

<ExtensionAttribute>
Public Shared Function IsAttached(Of TSource As Entity, TTarget As Entity) (
    context As OrganizationServiceContext,
    source As TSource,
    propertySelector As Expression(Of Func(Of TSource, IEnumerable(Of TTarget))),
    target As TTarget
) As Boolean

Parameters

• context
  Type: Microsoft.Xrm.Sdk.Client.OrganizationServiceContext

  Type: OrganizationServiceContext. The service context.

• source
  Type: TSource

  Type: TSource. The source entity instance.

• propertySelector
  Type: System.Linq.Expressions.Expression<Func<TSource, IEnumerable<TTarget>>>

• target
  Type: TTarget

  Type: TTarget. The target entity instance.

Return Value

Type: System.Boolean

Type: Boolean
.

Type Parameters

• TSource
  The source entity.

• TTarget
  The target entity.

Remarks

This is an extension to the core IsAttached method.

See Also

IsAttached Overload
OrganizationServiceContextExtensions Class
Microsoft.Xrm.Client Namespace

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