Question

I am using Linq-to-SQL for accessing SQL Server 2008.
In database I have UNIQUE index on some column.

When I enter duplicated data in that column, LINQ will throw SqlException with an error message. Is there a way to figure out that exception is related to UNIQUE index and not some other SQL error?

Solution I am aware of is to user RegEx to parse exception message, but I would like to know is there more elegant approach?

Answer 1

You could use the SQLException.Number property.

For more details you could iterate the Errors collection each of which have thier own number.

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As an aside, in the past I have written my own custom serialiser for SqlException but it appears that in 4.5 ToString() has been overridden so this is not now necessary.