Question

I have list of strings like this

“FirstName-Lastname” (separated by a dash -)

I need to sort it this list by first name and then by last name

What is the best way to do this.
i need to process 30000 strings in less than 1 second.

I was suggested to use LINQ to Entities.

what is the best way to use this?

thanks a lot for any help

EDIT: to avoid confusion the input is List<string>

Answer 1

You could use LINQ (which would allow you to sort without modifying the data in the List):

names.OrderBy(s => s.Split('-')[0]).ThenBy(s => s.Split('-')[1]);