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About ASP.NET ASP.NET is a web application framework developed and marketed by Microsoft to allow programmers to build dynamic web sites, web applications and web services. It was first released in January 2002 with version 1.0 of the .NET Framework, and is the successor to Microsofts Active Server Pages (ASP) technology. ASP.NET is built on the Common Language Runtime (CLR), allowing programmers to write ASP.NET code using any supported .NET language. Characteristics Pages .NET pages, known officially as web forms, are the main building block for application development. Web forms are contained in files with an .aspx extension; in programming jargon, these files typically contain static (X)HTML markup, as well as markup defining server-side Web Controls and User Controls where the developers place all the required static and dynamic content for the web page. Additionally, dynamic code which runs on the server can be placed in a page within a block % -- dynamic code -- % which is similar to other web development technologies such as PHP, JSP, and ASP, but this practice is generally discouraged except for the purposes of data binding since it requires more calls when rendering the page. Note that this sample uses code inline, as opposed to code behind. %@ Page Language=C# % !DOCTYP Ehtml PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN /TR/xhtml1/DTD/xhtml1-transitional.dtd script runat=server protected void Page_Load(object sender, EventArgs e) { Label1.Text = DateTime.Now.ToLongDateString(); } /script html xmlns=/1999/xhtml head runat=server titleSample page/title /head body form id=form1 runat=server div The current time is: asp:Label runat=server id=Label1 / /div /form/body/html Code-behind model It is recommended by Microsoft for dealing with