LINQ To SQL exception: Local sequence cannot be used in LINQ to SQL implementation of query operators except the Contains operator

Question

Consider this LINQ To SQL query. It\'s intention is to take a string[] of search terms and apply the terms to a bunch of different fields on the SQL table:

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Answer 1

Replace the usages of Any with Contains in your query. eg:

searchTerms.Contains(c.Email)

This should get the result you're looking for. It looks backwards, but it's correct- it'll generate an IN operator for each field inside a Contains with all the elements in searchTerms.

The AddressLine1 part won't work this way- you'll have to loop-generate the comparisons yourself with

c.addressLine1.Contains(...)

Something like PredicateBuilder can be helpful for this.