DataServiceContext.AttachLink Method
Notifies the DataServiceContext to start tracking the specified link that defines a relationship between entity objects.
Namespace: System.Data.Services.Client
Assembly: Microsoft.Data.Services.Client (in Microsoft.Data.Services.Client.dll)
Syntax
'Declaration
Public Sub AttachLink ( _
source As Object, _
sourceProperty As String, _
target As Object _
)
'Usage
Dim instance As DataServiceContext
Dim source As Object
Dim sourceProperty As String
Dim target As Object
instance.AttachLink(source, sourceProperty, _
target)
public void AttachLink(
Object source,
string sourceProperty,
Object target
)
public:
void AttachLink(
Object^ source,
String^ sourceProperty,
Object^ target
)
member AttachLink :
source:Object *
sourceProperty:string *
target:Object -> unit
public function AttachLink(
source : Object,
sourceProperty : String,
target : Object
)
Parameters
- source
Type: System.Object
The source object in the new link.
- sourceProperty
Type: System.String
The name of the property on the source object that represents the link between the source and target object.
- target
Type: System.Object
The target object in the link that is bound to the source object specified in this call. The target object must be of the type identified by the source property or a subtype.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | When source, sourceProperty, or target is null. |
| InvalidOperationException | When the link between the two entities already exists. -or- |