You could make sure the user name entered during the registration process of your website is unique before the submit button is clicked using AJAX and C#. To accomplish this create two aspx pages.
Windows Management Instrumentation (WMI) makes querying Windows for system and devices information easy. And this is even easier with System.Management assembly. The code listed loads the names of the network connections in a ListBox, which …
Developing applications in C# that access resource on the internet is easy. This post shows four useful functions: checking if the PC is connected to a network, domain name to IP address lookup, ping a …
The Registry is a database in Windows that is available for application developers to use for storing small amounts of data. It is mostly used to save application setting like the window size and database …
XML's structure is hierarchical and therefore can be displayed in a TreeView control easily. The XMLTree program displays the elements of the XML file in a TreeView control and the attributes of the selected element …
GeoLocation refers to identifying a real-world geographic location of a computer, device or website visitor. There are a many websites that provide this service, some are free and some are not. A populare and free …
A few weeks ago I posted Taking Thumbnails of a Website, that shows how to take a screen shot of a website using the Web Browser control. I used the code from the post to …
Master pages were introduced into the .NET Framework in version 2.0. They are web pages that can contain XHTML, server-side controls and user controls just like normal ASP.NET page (with .aspx extension), but with a …
Gravatar is a popular avatar service that links email addresses to the avatar. You do not need to register an account to be able to display gravatars on your site. All you need to do …
When I got my Phidgets StarterKit I decided to use the LCD that came with it with the Outlook Addin I developed for my previous post "Capturing Outlook 2007's New Mail and Reminder Events". The …