TAILIEUCHUNG - Professional ASP.NET 3.5 in C# and Visual Basic Part 161

Professional in C# and Visual Basic Part 161. Building on the revolutionary release, adds several key new developer features including AJAX, LINQ, and a new CSS designer in Visual Web Developer 2008. The dramatic reduction in code that developers realized from the more than 50 new server controls in now allows developers the time to make their applications more interactive with AJAX, to work with data in their preferred language with LINQ, and to build visually attractive and consistent standards-based sites with CSS | Chapter 34 Packaging and Applications installer program that can run side events provide dialogs and even install extra items such as databases and more. Just remember that when working on the installation procedures for your Web applications you should be thinking about making the entire process logical and easy for your customers to understand. You do not want to make people s lives too difficult when they are required to programmatically install items on another machine. 1566 Migrating Older Projects In some cases you build your applications from scratch starting everything new. In many instances however this is not an option. You need to take an application that was previously built on the or versions of the .NET Framework and migrate the application so that it can run on the .NET Framework . This appendix focuses on migrating or applications to the framework. Migrating Is Not Difficult Be aware that Microsoft has done a lot of work to ensure that the migration process from is as painless as possible. In most cases your applications run with no changes needed. When moving a or application to you don t have to put the application on a new server or make any changes to your present server beyond installing the .NET Framework . After you install the .NET Framework you see the framework versions on your server at C WINDOWS Framework as illustrated in Figure A-1. In this case you can see that all five official versions of the .NET Framework installed including and . Appendix A Migrating Older Projects Figure A-1 Running Multiple Versions of the Framework Side by Side From this figure you can see that it is possible to run multiple versions of the .NET Framework side by side. and applications can all run from the same server. Different .

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