ASP.NET Web Page:
- Introduction
The ASP.NET
Web page works as the programmable user interface for Web application. The Web
page is used to display information to the user in any browser or client device.
The
Web Form implements application logic code with the help of VB,C# and J#
language. When a client request for ASP.NET page the server executes the
ASP.NET Page on the serever and returns the HTML page to the user.
The ASP.NET
page has .aspx file extension. The .aspx stands for ActiveX Server Page
Extension. By default the ASP.NET page contain the Form Control.
The beauty
of ASP.NET page is it separates the user interface code with the business
logic. The user interface code is stored into different file which has .aspx
file extension. This file is called as designer file. The business code is
stored into different file which has .aspx.vb file extension. This file is
called as code behind file.
Structure of ASP.NET Web Page
<%@ Page
Language="vb" AutoEventWireup="false"
CodeBehind="Default.aspx.vb"
inherits="WebApplication108._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD
XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml">
<head
runat="server">
<title></title>
</head>
<body>
<form
id="form1" runat="server">
<div>
</div>
</form>
</body>
</html>
Line1:-This line is called as Page directive declaration. The page
directive declaration tells the user what language is used to write the
business logic into the code behind logic file, the code behind logic file name
and debugging information.
Line2:-This line is called as Document Type Declaration or DTP declaration.
Line3:-This line is called as HTML declaration. This HTML declaration tells
the user that this particular web page is designed using HTML language.
