Be Expert with us in .NET and SQL Server

  What’s new

•   ASPX instead of ASP
•   Object Oriented
•   Object Model
•   Type Safe – no variant
•   Multiple Languages
•   Compiled
•   Code Behind

  Parts of an ASP.NET Page

•   Web Form
•   Code Behind
•   HTML Server Controls
•   Web Server Controls
•   Validation Controls
•   User Controls

  Web Forms

•  <form runat=“server”>
• Only one per page
•  Posts back to the same page (itself)

  Code Behind

•   Contains back end code
•   Separates page logic from page layout
•  Generates code automatically for design time actions
•  Creates handlers for events as required

  HTML Server Controls

•  Look and feel like normal HTML elements
•   Equivalents for all standard elements available
•  Adds runat=“server” to the control
•  Allows server side interaction with controls  (  Not possible with HTML elements)

  Web Server Controls

•   Recommended way to use and create controls
•  Lots of controls available out of the box
•   Includes DataGrid, DataList, Repeater and more
•   Contain full Object Model:

1. Properties
2.   Events
3.   Methods

• Automatic browser detection and rendering

  Validation Controls

•   Controls that allow input validation
•   Work at:   Client side (JavaScript),   Server Side
•   Currently present are:

1. RequiredFieldValidator
2.  CompareValidator
3.   RangeValidator
4.   RegularExpressionValidator
5.   CustomValidator
6.   ValidationSummary

  User Controls

1. User created controls
2.  Can be re-used in other Web pages
3.   Requires no extra knowledge
4.   Use file extension of ASCX