In my class, I have a condition to decide if I should put 350 or 50% as the textbox width. If I do it from the aspx page, I can enter it there. But, when doing it from the class, I have access to the Width property but this would expect that I pass a numeric. How can I pass a percentage in there? This is a textbox control but used in multiline. So, depending on the setting, I need to switch to fix mode or in percentage.