Most Popular Scripts | ASP.NET | Tutorials & Tips

Demonstrates how to use custom validation on a form by checking to see if a string in a TextBox is not the same with a string from an array (or database), case in which it displays 'This name is already taken'.

How to create a cookie, how to get the value stored in a cookie, set the lifetime, path and domain for a cookie, edit a cookie, delete a cookie, remove subkeys from a cookie...

With a solid foundation created in Part 1, we now turn our attention to more advanced topics. We�ll use context rewriting for some professional looking and hassle free state-management, talk about good database design with respect to multilingual applications, and dive into more advanced Localized controls for ultimate flexibility and productivity.

This article explains how to use the .NET XmlTextWriter class to create a custom RSS feed. I have decided to write this article in 2 parts. In this part, I will focus on creating the RSS feed and how to consume it from an asp.net page. In part 2, I will focus on creating a dynamic RSS feed with ADO.NET.

We probably all remember how agonizing it is to create client-side cookies using JavaScript. HttpCookie class offers an easier way to accomplish the task and with minimal fuss. This article takes a close look at HttpCookie class and how to use it to store cookies on the client machine.

This tiny demo source code will give you a hint about how to query data stored on your server via XMLDB Engine Lite (XMLDBelt), create new files, insert data into existed, update data, delete and etc.

An article that briefly describes commonly used Design Patterns; Singleton, Factory Method, Adapter, Proxy, Decorator, Composite, Observer, MVC, Template and Strategy.

This article explains how to convert the database-driven query string containing links to search-engine friendly ones.

Recently we had a Website that was redone from a large static site to a dynamically driven site in ASP.Net. The original site was heavily indexed by the major spiders on the Web, we did not want to lose the reference links in the engines and wanted to make sure the link clicked on would go to an appropriate paged in the site. In this article we cover how to create a document mapper so the old URL is redirected to the new related page within the new site.

In this article we will cover working with the system registry, both reading and writing values. In this example, we will cover creating a license registration for your application.

In this article we will cover exposing an existing ASP.Net application as a Web service. We will provide methods for creating the Web service, converting readers to data sets, and a client application for the new service.

Here we provide several methods for managing your Active Directory database via ASP.Net code. We'll cover querying user information using System.DirectoryServices, changing user accounts, and group management.

At my place of employment, I work a great deal with somewhat complex hierarchical data as part of our measurement and analysis software. Thus, recursion and I have become rather close friends over the last few years. While rewriting an old website, I needed to turn a set of four relational tables into a hierarchical data structure. The top level table held self-referencing relationships as well as child relationships to table 2. Tables 3 and 4 were your basic "run of the mill" child tables up through table2.

Mostly we want to change output results of our applications to another culture setting. In this code sniplet we will format current date time for our culture settings

While working with file system, sometimes we must list all directories in a folder. This sample shows us how to list all directories in a folder. Source code written in Visual Basic.NET can easily modify to work in an application.

We can easily connect a database server within an assembly. After we compile this source code you can access your database provider. In tis source code I have used SQL Server.

In this article we cover using the System.Net class to make an HTTP request and return the status code. In addition, we'll cover handling the HTTP response and binding it to an XSL transformation.

In this code snippet we're going to provide will enable you to add text to an image in memory. One use for this code may be to open a file on the file system and add some text to the image, then stream the image out to the user. This could come in handy if you want to create navigational buttons for your Web site dynamically based on a request or dynamically create banners via .Net code.

In this article we will take a quick look at two methods for creating SHA1 passwords for use on the web using .NET. It is dangerous to store passwords anywhere in plain text!! SHA1 gives a quick and easy way to encode a password into a non-human readable form. This means it is safer to store in a database, and should the database be viewed by anyone who shouldn't know the passwords, it will be much more difficult for them to work out what a user's password is.

The label "web services," as broadly applied, has two levels of meaning�one specific and one conceptual. Specifically, web services are a stack of emerging standards that describe a service-oriented, component-based application architecture. Conceptually, web services represent a model in which discrete tasks within e-business processes are distributed widely throughout a value net.