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

Article
06/06/2017

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, 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, TTarget>^>^ propertySelector,
    TTarget target
)

static member IsAttached<'TSource, 'TTarget when 'TSource : Entity when 'TTarget : Entity> : 
        context:OrganizationServiceContext *
        source:'TSource *
        propertySelector:Expression<Func<'TSource, '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, 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, 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.

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