private void button1_Click(object sender, EventArgs e) { string teststring = StringManipulator.FindStringBetween2Strings( "This is a bunch of instance words.", "This is a", "instance");; if (teststring == " bunch of ") { MessageBox.Show("Passed"); } else { MessageBox.Show("Failed"); } teststring = StringManipulator.FindStringBetween2Strings( "123456789", "234", "78"); if (teststring == "56") { MessageBox.Show("Passed"); } else { MessageBox.Show("Failed"); } teststring = StringManipulator.GetFileNameFromFullPath(@"C:\Users\Public\myfile.txt"); if (teststring == "myfile.txt") { MessageBox.Show("Passed"); } else { MessageBox.Show("Failed"); } }