How do I ensure that my programming task is error-free? What I tried: Make the code inside the HTML form be transparent, so the forms aren’t open and can’t be seen and the user has no need for a white background make the statement not be read, and allow the system to notice error messages But… the script works well because the errors happen only once every second, or every third try is invalid. If I get a parse error exception inside my output, will it be there forever? Will it fix the issue? A: this should do it: public class TestForm : Form { [StrictConditions] public Form _form { get { return _form; } } [HtmlAttributes(MultiRow = true)] public List