Explains what is validation, why validation of user input is so important and how to use ASP.NET 2.0 validation controls to build robust Web applications.

.NET framework is a Windows Component that supports the building and running of windows applications and XML Web services. The purpose of the component is to provide the user with a consistent object oriented programming environment whether the code is stored locally or remotely. It aims to minimize software deployment and versioning conflicts and also promote safe execution of code including codes executed by trusted third parties. It is directed towards eliminating performance problems of scripted or interpreted environments. The effort is to make developer experience consistent across a variety of applications and platforms and create communication standards that help .NET framework applications integrate with all other web based applications.

ASP.NET 2.0 Tutorials: Application development in .NET : Client Side Application Development Client applications are applications that run on the client system-or the desktop of the user. They are closest to the traditional windows based applications and they display forms or windows on the desktop enabling the user perform predefined tasks. Word processors and spread sheets are examples of client applications that employ menus, GUI elements and access local resources such as printers and scanners.

In this tutorial you will learn DetailView DataBound Control, To create a file system Web site, Connecting to SQL Server, Use a Drop-Down List as the Master and To test the drop-down list.

Explains how Web services work and how to call it from ASP.NET. When we create and run this web service , it will be run by a web browser. However, in real life, the true aim of web service can only be achieved if we can call it from some web application or a console application.

Explains how to simulate hidden column in GridView control. GridView is one of the new controls in ASP.Net 2.0 that replaced the DataGrid. In earlier versions of .Net when you didn't want the data to be visible to the client, you simply set the Column visibility to False. But, if you try that with ASP.NET 2.0 GridView control, it will return only empty string.

This discussion will focus around "How to write secure code?" using .NET Technologies. It will also discuss secure coding practices for enterprises and organizations. The discussion will include following topics: .NET Security Fundamentals; Code Access Security; Impersonation, Authentication and Authorization; Security in COM+ and ASP.NET. Source code included.

While ASP.NET 2.0 is completely backwards compatible with ASP.NET 1.1, its new features may require you to revise parts of your Web applications. This article provides a detailed analysis of how changes in ASP.NET 2.0 will influence your porting decisions.

Explains how to set focus in ASP.NET controls (e.g. button or textbox) using ASP.NET server side code or client side javascript. Tutorial includes review of focus in ASP.NET 2.0 too.

ASP.NET 2.0 Free Training : Forms Authentication in ASP.NET 2.0 - In this tutorial you will learn about Forms Authentication in ASP.NET 2.0 - Forms Authentication class, Cookie Domain, Forms Cookies, The Login Control, Signin, Signout, Authenticate, Redirect, Login Status, Login Name and Login View Controls.