I wrote a tutorial on using AJAX technology in ASP.NET applications, and it only shows a very simple but common use of AJAX. Another common use of AJAX is to populate a drop down list based on the selection of another drop down list without using post back. It is especially useful when populating a large drop down list and the connection is not so fast. Let’s get started. Before we go too far, let’s […]
Monthly Archives: October 2006
3 posts
I like to use DataAdapter to create a Data Access Layer to manipulate data in my applications. One of the advantages of using DataAdapter is that it allows you to insert/update/delete data in a batch mode by using Strong Tyed DataTable. How it works? Every record in the Strong Typed DataTable has a property called RowState that keeps track of the status of the record. For example, when a record is deleted from DataTable, the […]
Our old laptop has been giving us problems for about two years. When I am surfing the Internet, the laptop will freeze up unexpectedly, especially if I scroll the page up and down frequently, then the laptop will freeze up. I have tried several ways to fix the problem, but in vain. Here are the methods I have tried before: Reinstall Windows XP. Yeah, it is always our first choice when we deal with Windows […]