How to dynamically add OR operator to WHERE clause in LINQ

Question

I have a variable size array of strings, and I am trying to programatically loop through the array and match all the rows in a table where the column \"Tags\" contains at le

Answer 1

Either build an Expression yourself, or look at a different route.

Assuming possibleTags is a collection of tags, you can make use of a closure and a join to find matches. This should find any songs with at least one tag in possibleTags:

allSongMatches = allSongMatches.Where(s => (select t from s.Tags
                                            join tt from possibleTags
                                                on t == tt
                                            select t).Count() > 0)