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Asked: 2026-05-26T15:54:14+00:00

I have implemented Change Tracking (http://msdn.microsoft.com/en-us/library/cc280462.aspx) on some tables I am using Linq2Sql on.

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I have implemented Change Tracking (http://msdn.microsoft.com/en-us/library/cc280462.aspx) on some tables I am using Linq2Sql on.

As a part of this I need to add the below SQL to the start of the update statements generated. 

DECLARE @originator_id varbinary(128);
SET @originator_id = CAST('SyncService' AS varbinary(128));
WITH CHANGE_TRACKING_CONTEXT (@originator_id) 
....generated statements....
....
....

I know I can create stored procedures and manually map the fiels but I would like to avoid this if possible.

does anyone know a way to override and edit the SQL on SubmitChanges()?

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1 Answer

  1. Editorial Team

    You can override the Update method by implementing partial classes on your datacontext that LINQ to SQL will call instead. Just give it the signature:

    partial void UpdateClassName(ClassName instance)

    You can also pass through to what it would normally do using:

    ExecuteDynamicInsert(instance);

    Unfortunately there is no mechanism just to get the intended SQL back for inserts/update/deletes (you can get SELECT statements with GetCommand on the DataContext)

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