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This article is about Matematico, a logical game I played when I was 11 years old. I never forgot this game and my teacher who was a very clever woman. Now, my daughter Nina is able to play with me and I create this page for her just for fun. And for you, of course. You can play this game with your children, parents, and friends. IMHO this game is better than bingo, and poker.

This article presents some best practices that you can follow to deploy ASP.NET applications in production mode. These practices help you avoid problems both during and after deployment.

Anyone who has spent time developing URL rewriters will know that these do not always play nicely with AJAX components. This is because the HtmlForm element written out by .NET uses the actual URL for post-backs, and not the page's virtual URL that you are trying to preserve. This article discusses how this can be resolved cleanly, and also shows how control adapters may be set programmatically using Reflection. This is useful for creating plug & play components such as URL rewriters in order to minimise the amount of configuration required.

Enhancements and Fixes that add features like more control over column widthes and preventing wrapping.

This is second part in two part series of my article Google Maps User Control for ASP.Net. In the first part I have explained how to use this control in your ASP.Net application. In this part, I am going to explain source code of this user control so that you can modify it for your own use.

ASP.NET DropDownList render custom control with OptionGroup feature.

Discusses asp.net viewstate and page life cycle in depth

This article describes how to implement a web-chat with ASP.NET and Ajax. In the first part I introduce the technologies I used for the application. Then I explain the concept of a chat and in the last part I present the main implementations. The goal of this article is to show the interested reader how to develop a chat without browser-plugins or java-applets, just pure HTML and JavaScript.

Because multiple users can visit the same web page concurrently, it is possible for a user visiting a data modification page to inadvertently overwrite the modifications made by another user. Consider a page with an editable GridView. If two users visit this page simultaneously from different computers and both edit the same row, whomever saves the first will have her changes overwritten by whomever saves the row last. This type of behavior is known as "last write wins" and is the default behavior for web applications..

Edit web.config to Update the Data Provider for Shared Hosting with Role-Based Security: SQL Server, ODBC, Active Directory, ADAM, SQLite, MySQL, Access, XML