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ChangeConflictException in Linq to Sql

I get "String not found or exception thrown."

System.Data.Linq.ChangeConflictException: Row not found or changed. at
System.Data.Linq.ChangeProcessor.SubmitChanges(ConflictMode failureMode) at
System.Data.Linq.DataContext.SubmitChanges(ConflictMode failureMode)
at System.Data.Linq.DataContext.SubmitChanges()

How can I indicate which column throws an exception?

Thank.

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See How to Get Member Conflict Information (LINQ to SQL) if you just want the code to be sample code.

Linq2Sql concurrency. , UpdateCheck Column Linq2Sql Always ( ), Never WhenChanged, concurrency check . MSDN: concurrency (LINQ to SQL)

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