In Visual Basic 2015 lesson 3, we have learned how to design the user interface by adding controls to the form and changing their properties. However, the controls on the user interface alone will not work without adding code to them. In this lesson, we shall learn how to write Visual Basic 2015 code for all the controls so that they can interact with events triggered by the users. Read more by following the link below:
http://www.vbtutor.net/index.php/visual-basic-2015-lesson-4-writing-code/