Hello Suresh A,

These is no relevant difference.
You can simply copy the code that is used in what you refer to as "design time" in the InitializeComponent method of the Form and place it for example in the Form's Load event listener method or some Button's Click event listener method. The code would do exactly the same but at a different time.

Please reply if you need any further assistance or information on the subject.

Regards,

Ori Cohen
Support Manager, the Visual WebGui team