I have a textbox on an ASP.NET page which users enter new users in.(multiples separated by a semicolon) We've been having performance issues and want to only let people enter 10 users. What's the best ...

I've got a C# app that will run all day and continually output lines of data to a textbox. Only the last 100 lines need to be available in the textbox. This means when a line over 100 needs to be ...