Make Entity Framework be case-insensitive

问题

Is it possible to set entity framework string comparison case insensitive by default?

If I use

string.StartsWith("stringToCompare", StringComparison.CurrentCultureIgnoreCase)

it works. But when I need to use

string.Contains("strigToCompare")

it doesn't have an overload.

回答1:

You can simply change the case of both fields to Upper Case:

String stringToCompare = "Some String";

string.ToUpper().Contains(stringToCompare.ToUpper())

This will make the search case-insensitive by converting all case to upper. Of course, ToLower() would work as well.

来源：https://stackoverflow.com/questions/3069241/make-entity-framework-be-case-insensitive