Hello friends! In this tutorial, we will add Add, Save, Remove and navigation buttons to a Visual Basic database application. We will continue with the contact form from our previous lesson and use its existing dataset, binding source and TableAdapter. If you have not built that form yet, first follow creating a database in Microsoft Visual Studio . This lesson retains the original Visual Studio 2010 Windows Forms example, with clearer event handlers and explanations of what each button changes. The key distinction is that editing a bound form changes in-memory data first. Adding a row, removing a row and moving to another contact do not necessarily write anything to SQL Server. Our Save button is responsible for sending the pending changes to the database. Figure: A database illustration ...