Add a suffix in TextField

I have this textfield, which holds a number in ms. I want to make that clear, and add ms into the textfield. If I try to add ms and then parse it to an int, I get errors of course.

Does anybody know a workaround?

You could remove the ms before trying to parse the string:

int.TryParse(textFieldString.Replace("ms", ""), intVariable);

For that sort of thing you’d typically have the “ms” as a label outside the textfield.