Beginning Ajax and ASP.NET 3.5

More articles in ASP.NET

Ajax is a great helper to us while developing rapid applications without worrying us at power of asynchronous. In Visyal Web Developer 2008 comes with builtin Atlas and ASP.NET3.5 . In this tutorial, I try to show you what's ajax and database querying at same time.

Now let's build our scene. Open an empty web site and dop a ScriptManager and UpdatePanel from Ajax Extensions tab. Close the tab and open standard controls and drop one textbox and one button. Place a label inside ajax control and one more outside of UpDatePanel. The second label will display that we are using Ajax and page is not posting back. I will add some hard codes and I have put s SqlDataSource and a GridView. Complete code is below.

Ajax Atlas ASP.NET 35

What's going on!

I'm sure that, you're thinking that that was too easy. We have just write a scene for Visual Web Developer and place all actors on board. When we start application, first label (outside of Ajax Control) will display the second of request time. Type a character on textbox and hit the burtton. Ajax will fill the GridView without posting page and label2 will display working second of application. Look at that label1 did not change. Because page loaded only one time but Ajax loaded data intop GridView without posting request. Only a small part of page has been updated.

Here is the page code:


See full detail: http://www.dotnetindex.com/articles/8098-Beginning-Ajax-and-ASPNET-35.asp

Comments

Post a Comment

Popular posts from this blog

Asynchronous Socket Programming in C#

Image
Objective The objective of this article is to demonstrate a socket-based client/server application that will allow two-way asynchronous communication between a server and multiple client applications. Because this example uses asynchronous methods, the server application does not use threads to communicate to multiple clients (although internally the asynchronous communication mechanism uses threads at the OS level). The Difference Between Synchronous and Asynchronous Communication in Network Programming The key difference between synchronous and asynchronous communication can be explained with an example. Consider a server application that is listening on a specific port to get data from clients. In synchronous receiving, while the server is waiting to receive data from a client, if the stream is empty the main thread will block until the request for data is satisfied. Hence, the server cannot do anything else until it receives data from the client. If another clien
Read more

Url Routing MVC TUTORIAL

Image
This tutorial covers an introduction to the MVC pattern using Visual Basic. It also includes a brief overview of the URL routing assumptions that are a foundation to the implementation of the pattern. A sample application is created to demonstrate the fundamentals of this new web-application model. Implementing business rules and testing is also covered. Finally, the use of two alternative view engines, Silverlight and XML Literals, is coverd.
Read more

WCF Chat Sample

Image
The Chat sample demonstrates how to implement a multiparty chat application by using PeerChannel. Messages sent by any instance of a chat application are received by all other instances. To get samples and instructions for installing them Do one or more of the following: On the Help menu, click Samples . The Readme displays information about samples. Visit the Visual Studio 2008 Samples Web site. The most recent versions of samples are available there. Locate samples on the computer on which Visual Studio is installed. By default, samples and a Readme file are installed in drive :\Program Files\Microsoft Visual Studio 9.0\Samples\ lcid . For Express editions of Visual Studio, all samples are located online. For more information, see Locating Sample Files . Security Note: This sample code is intended to illustrate a concept, and it shows only the code that is relevant to that concept. It may not meet the security requirements for a specific environment, a
Read more