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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

Google has provided a very reach Google Maps API to use it in our own application. But we need some short of javascript knowledge in order to use it. I don't know about others, but for me it was a little difficult to use javascript along with google apis in ASP.Net pages, specifically if you want to use server side functions to draw google map dynamically. For example, in my case I wanted to pull latitude longitude information from a SQL Server database and then use them to insert pushpins on google map. If you are familiar with Ajax framework, you know the answer. You will have to call asp.net server side function from javascript and use retrieved data to draw a google map. How simple is that? :). Atleast not for me. So I have decided to write a user control which can take care of javascript part and allows me to concentrate on serverside functions.

This article describes the life cycle of the page from the moment the URL is hit from the web browser till the HTML code is generated and sent to the web browser.

The purpose of this article is to introduce you to the idea of building your data-driven web pages dynamically in the code behind. I will get you started on building a class library of your own to make this technique more efficient. I will show you how to build out pages dynamically. Finally, I will explain both the benefits and disadvantages..

This article describes how to create a user control with event & properties.