asp.net pdf 417 Enhancing an existing ASP.NET site in .NET framework

Make PDF-417 2d barcode in .NET framework Enhancing an existing ASP.NET site

Enhancing an existing ASP.NET site
Encode PDF-417 2d Barcode In .NET
Using Barcode printer for ASP.NET Control to generate, create PDF 417 image in ASP.NET applications.
www.OnBarcode.com
Encoding PDF417 In .NET
Using Barcode printer for ASP.NET Control to generate, create PDF417 image in ASP.NET applications.
www.OnBarcode.com
The goal for the next few sections is straightforward: to take a traditional web application written in ASP.NET and enrich the user experience by adding the Ajax server extensions. In addition to showing how the controls are used, this approach will also demonstrate why and how they re applied in a normal situation. One of the reasons the server extensions are so enticing in this scenario is that they allow you to rapidly integrate Ajax-like behavior into existing applications. It s important to note that without some care and thought, use of the server extensions can be abused and in some cases can even degrade performance. We ll assess each portion of the application as we reach it; but first, here are some general guidelines to keep in mind:
QR Code Generator In VS .NET
Using Barcode drawer for ASP.NET Control to generate, create QR-Code image in ASP.NET applications.
www.OnBarcode.com
Generating Code 128 Code Set B In Visual Studio .NET
Using Barcode generator for ASP.NET Control to generate, create Code 128C image in ASP.NET applications.
www.OnBarcode.com
Improve network latency Do your best to cut back on the amount of data passed between the browser and server. If you can eliminate unnecessary data, network latency and response time will improve. Eliminate full-page refreshes Keep the interaction between the user and the application as fluid as possible, and avoid a full-page refresh whenever feasible.
Creating UPC-A In VS .NET
Using Barcode encoder for ASP.NET Control to generate, create UPC Symbol image in ASP.NET applications.
www.OnBarcode.com
Barcode Drawer In Visual Studio .NET
Using Barcode printer for ASP.NET Control to generate, create Barcode image in ASP.NET applications.
www.OnBarcode.com
Enhancing an existing ASP.NET site
Create Code-39 In VS .NET
Using Barcode maker for ASP.NET Control to generate, create Code 39 Full ASCII image in ASP.NET applications.
www.OnBarcode.com
Interleaved 2 Of 5 Maker In .NET
Using Barcode printer for ASP.NET Control to generate, create ANSI/AIM ITF 25 image in ASP.NET applications.
www.OnBarcode.com
Keep UI and application logic in code-behind files Keep any logic used to render or manipulate the UI in the server-side code. This gives you the luxury of supporting browsers that have JavaScript disabled as well as not exposing logic to savvy web users via the client script. Use seamless, transparent integration Try to keep the existing application intact as much as possible so that future changes will be easy to integrate and few or no changes to the existing logic will be required. Stick to a familiar paradigm Leverage the server controls so that a typical ASP.NET developer can continue to develop using an already familiar paradigm (server controls and ASP.NET postback mechanism).
Making PDF 417 In Visual C#
Using Barcode generation for VS .NET Control to generate, create PDF417 image in .NET framework applications.
www.OnBarcode.com
PDF 417 Encoder In Visual Basic .NET
Using Barcode encoder for .NET framework Control to generate, create PDF 417 image in .NET framework applications.
www.OnBarcode.com
If you can meet these goals, you ll have done something rather impressive. Let s begin our journey by examining the existing site you ll be working with for the remainder of the chapter.
EAN 13 Recognizer In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Code-39 Drawer In None
Using Barcode creation for Office Excel Control to generate, create Code 39 Full ASCII image in Excel applications.
www.OnBarcode.com
A sample ASP.NET site
QR Code ISO/IEC18004 Creator In None
Using Barcode encoder for Software Control to generate, create QR Code image in Software applications.
www.OnBarcode.com
Encode UPCA In None
Using Barcode generator for Font Control to generate, create UPC A image in Font applications.
www.OnBarcode.com
Figure 4.2 shows the home page for a fictitious and wealthy record company: Song Unsung Records. Although it s visually appealing, the application is in desperate need of help in the usability department. For the sake of a realistic scenario, let s imagine that the site has grown in popularity and that you ve been brought aboard as a highly paid consultant to (you hope) improve its usability and performance. After taking a quick look at the interface, you notice immediately that a few areas on the page encourage user interaction: the Artists search at the top, the list of recent feedback items at lower left, and the section for news about a music genre on the right. Unfortunately, interacting with some of the controls in these regions invokes a postback, which causes the page to refresh and takes away any interaction the end user has with the site. We briefly touched on postbacks in chapter 1, but it s worth mentioning again that a postback is costly because of the amount of data sent back and forth to the server and the loss of interaction for the user. Understanding this behavior is important because it s an integral part of how ASP.NET behaves and what the Ajax server extensions are all about.
Generate PDF 417 In VS .NET
Using Barcode creation for Reporting Service Control to generate, create PDF-417 2d barcode image in Reporting Service applications.
www.OnBarcode.com
Barcode Recognizer In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Exploring the Ajax server extensions
Code 39 Full ASCII Decoder In C#
Using Barcode decoder for .NET framework Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Drawing Barcode In None
Using Barcode creation for Software Control to generate, create Barcode image in Software applications.
www.OnBarcode.com
Figure 4.2 This application was written for a fictitious record company. Numerous areas on the page encourage user interaction. Each interaction, unfortunately, causes the page to refresh.
GS1 - 12 Scanner In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Read PDF 417 In VS .NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Configuring an existing ASP.NET site
Creating new sites that are Ajax-enabled is simple: You select the appropriate template from the New Site dialog (see chapter 1 and appendix A) in Visual Studio, and the configuration work is done for you. Taking an existing application and adding Ajax support requires a few more steps. The first involves adding a reference to the library.
Copyright © OnBarcode.com . All rights reserved.