You can do a simple wildcard mach without RegEx using a Visual Basic function called LikeString.
using Microsoft.VisualBasic;using Microsoft.VisualBasic.CompilerServices;if (Operators.LikeString("This is just a test", "*just*", CompareMethod.Text)){ Console.WriteLine("This matched!");}If you use CompareMethod.Text it will compare case-insensitive. For case-sensitive comparison, you can use CompareMethod.Binary.
More info here: http://www.henrikbrinch.dk/Blog/2012/02/14/Wildcard-matching-in-C