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Note If you re consolidating data by position, Excel does not copy the row or column labels in the source

For example, the CLR prevents many memory mistakes that are possible with lower-level languages such as C++ Along with these truly revolutionary benefits, the CLR has some potential drawbacks Here are three issues that are often raised by new developers but aren t always answered: Performance: A typical ASPNET application is much faster than a comparable ASP application, because ASPNET code is compiled to machine code before it s executed However, processor-crunching algorithms still can t match the blinding speed of well-written C++ code, because the CLR imposes some additional overhead Generally, this is a factor only in a few performance-critical high-workload applications (such as real-time games) With high-volume web applications, the potential bottlenecks are rarely processor-related but are usually tied to the speed of an external resource such as a database or the web server s file system With ASP.

NET caching and some well-written database code, you can ensure excellent performance for any web application Code transparency: IL is much easier to disassemble, meaning that if you distribute a compiled application or component, other programmers may have an easier time determining how your code works This isn t much of an issue for ASPNET applications, which aren t distributed but are hosted on a secure web server Questionable cross-platform support: No one is entirely sure whether NET will ever be adopted for use on other operating systems and platforms Ambitious projects such as Mono (a free implementation of NET on Linux, Unix, and Windows) are currently underway (see wwwmono-projectcom) However, NET will probably never have the wide reach of a language such as Java because it incorporates too many different platform-specific and operating system specific technologies and features..

Cake comes with standard HTML, Ajax, and JavaScript helpers that make creating views much easier. Your HTML output will be greatly facilitated by intuitive strings of helper code that render

Tip Although implementations of .NET are available for other platforms, they aren t supported by Microsoft, and

they provide only a subset of the total range of features. The general consensus is that these implementations aren t ideal for mission-critical business systems.

The .NET class library is a giant repository of classes that provide prefabricated functionality for everything from reading an XML file to sending an e-mail message. If you ve had any exposure to Java, you may already be familiar with the idea of a class library. However, the .NET class library is more ambitious and comprehensive than just about any other programming framework. Any .NET language can use the .NET class library s features by interacting with the right objects. This helps encourage consistency among different .NET languages and removes the need to install numerous components on your computer or web server. Some parts of the class library include features you ll never need to use in web applications (such as the classes used to create desktop applications with the Windows interface). Other parts of the class library are targeted directly at web development. Still more classes can be used in various programming scenarios and aren t specific to web or Windows development. These include the base set of classes that define common variable types and the classes for data access, to name just a few. You ll explore the .NET Framework throughout this book. You can think of the class library as a well-stocked programmer s toolkit. Microsoft s philosophy is that it will provide the tedious infrastructure so that application developers need only to write business-specific code. For example, the .NET Framework deals with thorny issues like database transactions and concurrency, making sure that hundreds or thousands of simultaneous users can request the same web page at once. You just add the logic needed for your specific application.

the markup for you. And getting Ajax to work, although a little tricky at first, is much easier and far more efficient than if you had to worry about DOM peculiarities. What s more, you can download other helpers written by fellow Cake developers to boost the strength of the framework or even write your own to cut down on repetitive or clumsy markup.