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DataServiceContext.AddObject Method

Adds the specified object to the set of objects that the DataServiceContext is tracking.

Namespace:  System.Data.Services.Client
Assembly:  System.Data.Services.Client (in System.Data.Services.Client.dll)

member AddObject : 
        entitySetName:string * 
        entity:Object -> unit 


Type: System.String
The name of the entity set to which the resource will be added.
Type: System.Object
The object to be tracked by the DataServiceContext.


When entitySetName or entity is null.


When entitySetName is empty.


When entity does not have a key property defined.


When the entity is already being tracked by the context.

The object is put into the tracking set of the DataServiceContext in the Added state. The DataServiceContext will try to insert the object by HTTP POST on the next call to SaveChanges. This method does not add objects related to the specified entity to the DataServiceContext. Each object must be added through a separate call to AddObject.

The method does not validate that the entity set specified is in the data service associated with the DataServiceContext or that the added object has the required properties needed to be added to the specified entity set.

.NET Framework

Supported in: 4, 3.5 SP1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.