Web Forms is one of three programming patterns for creating ASP.NET websites and web applications.
The other two programming patterns are Web Pages and MVC (Model View Controller Model-View-Controller).
Web Forms is the oldest ASP.NET programming model and is an event-driven web page that integrates HTML, server controls, and server code.
Web Forms are compiled and executed on the server, and the server generates HTML to display as a web page.
Web Forms - Events syntax
An event handler is a subroutine that executes code in response to a given event.
Web Forms - Events example
<%lbl1.Text="The date and time is " & now()%> <html> <body> <form runat="server"> <h3><asp:label id="lbl1" runat="server" /></h3> </form> </body> </html>