DataContext.ObjectTrackingEnabled Property
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Instructs the framework to track the original value and object identity for this DataContext.
Namespace: System.Data.Linq
Assembly: System.Data.Linq (in System.Data.Linq.dll)
Syntax
'Declaration
Public Property ObjectTrackingEnabled As Boolean
public bool ObjectTrackingEnabled { get; set; }
Property Value
Type: System.Boolean
true to enable object tracking; otherwise, false. The default is true.
Remarks
For information about using a local database in your Windows Phone application, see Local Database Overview for Windows Phone.
Setting this property to false improves performance at retrieval time, because there are fewer items to track.
An exception is thrown:
If the property is set to false after a query has been executed.
For more information, see the Valid Modes section in DataContext.
If the property is set to false and SubmitChanges is called.
If ObjectTrackingEnabled is false, DeferredLoadingEnabled is ignored and treated as false. In this case, the DataContext is read-only.
If ObjectTrackingEnabled is true, DeferredLoadingEnabled is false. In this case, DataContext allows you to load an object graph by using LoadWith directives, but does not enable deferred loading.
| Topic | Location |
|---|---|
| How to: Retrieve Information As Read-Only (LINQ to SQL) | LINQ to SQL |
| How to: Retrieve Information As Read-Only (LINQ to SQL) | LINQ to SQL |
Version Information
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.