String.Equals() not working as intended

Question

I am using LINQ to search through one of my Entity Framework tables and find a \"group\" based on the name. The name is a string and appears to be Unicode (says it is in the

Answer 1

The string comparison with StringComparison.OrdinalIgnoreCase works in memory or with IEnumerable. You are trying to use it with IQueryable, but the provider of your queryable does not understand it.

This works for me:

db.Users.FirstOrDefault(
     s => s.Username.Equals(username, StringComparison.OrdinalIgnoreCase)
);