Gets or sets the value that indicates whether changes to the data context object are tracked.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
The property is only used when selecting data from a LINQ To SQL data context object.
When you are interacting with read-only data, setting the property to false improves performance because the data is not cached to determine if it has changed. However, it also disables deferred query execution. This property must be set to true if you want to use deferred query execution.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.