ASP.NET is a web application framework developed and marketed by Microsoft to allow programmers to build dynamic web sites. It allows you to use a full-featured programming language such as C# or VB.NET to build web applications easily .This book covers all the basic elements of ASP.NET that a beginner would require to get started.ASP.NET is a web development platform, which provides a programming model, a comprehensive software infrastructure and various services required to build up robust web applications for PC as well as mobile devices.ASP.NET works on top of the HTTP protocol,and uses the HTTP commands and policies to set a browser-to-server bilateral communication and cooperation.ASP.NETis a part of Microsoft .Net platform. ASP.NET applications are compile dcodes, written using the extensible and reusable components or objects present in .Net framework. These codes can use the entire hierarchy of classes in .Net framework.ASP.NET application codes canbe written in any of the following languages:-C#-Visual Basic.Net-Jscript-J#ASP.NET is used to produce interactive, data-driven web applications over the internet. It consists of a large number of controls such as text boxes, buttons , and labels for assembling, configuring , and manipulating code to create HTML pages.ย