Conditional WHERE in LINQ

Question

Hi any suggestions on building a LINQ statement based on search criteria?

I\'ll be passing in an instance of a \'SearchCriteria\' class with all parameters nullable.

Answer 1

Try:

.Where(x =>
    (x.a != null ? x.a == a : false) &&
    (x.b != null ? x.b == b : false));

or

.Where(x =>
    (x.a != null && x.a == a) ||
    (x.b != null && x.b == b));

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Also:

.Where(x => new int[] { 1, 2, 3 }.Contains(x.i));