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Windows® Phone 8 Unleashed by Daniel Vaughan

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ColumnAttribute.UpdateCheck

UpdateCheck informs the data context when to verify that a member value in the database has not changed since it was retrieved. The following is the list of valid UpdateCheck values:

Image Always

Image Never

Image WhenChanged

When performing an update without the existence of a dedicated version member, LINQ to SQL generates an UPDATE statement with a WHERE clause that includes the original column values. If the values do not match those ...

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