Simple .NET/ASP.NET PDF document editor web control SDK

Figure 14-34. Windows Control Panel A window with your known Bluetooth Devices shows up, as shown in Figure 14-35. If there s already an NXT device in the window, select it and click the Remove button. Don t worry; you ll reconnect to it in just a moment. When the NXT device icon is gone, click the Add button.

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It is possible to add functions to both F# s record and union types. A function added to a record or union type can be called using dot notation, just like a member of a class from a library not written in F#. This provides a convenient way of working with records with mutable state. It is also useful when it comes to exposing types you define in F# to other .NET languages. (I discuss this in more detail in 13.) Some programmers from object-oriented backgrounds just prefer to see function calls made on an instance value, and this provides a nice way of doing it for all F# types. The syntax for defining an F# record or union type with members is the same as the syntax you learned in 3, except it includes member definitions that always come at the end, between the with and end keywords. The definition of the members themselves start with the keyword member, followed by an identifier that represents the parameter of the type the member is being attached to, then a dot, then the function name, and then any other parameters the function takes. After this comes an equals sign followed by the function definition, which can be any F# expression. The following example defines a record type, point. It has two fields, left and top, and a member function, Swap. The function Swap is a simple function that swaps the values of left

If your logic is implemented on the browser, what s keeping a malicious user from using a tool such as Greasemonkey to update the JavaScript and insert some special processing (say a 90-percent discount on your new widget ) Taconite makes it easy to access your business routines on the server side where it s easiest to develop, debug, and secure Taconite s server-side library is lightweight, requiring only your favorite JSP/servlet container and nothing else Configuration is minimal (no reams of XML here!); all you have to do is add Taconite s tag library descriptor (TLD) location to the WEB-INFxml file Thanks to its small size and zero dependencies, Taconite plays nicely with any J2EE Web framework Whether you use Struts, Spring, MVC, WebWork, Tapestry, or something else entirely, you can use Taconite without any extra work or a steep learning curve.

Figure 14-35. Devices tab of the Bluetooth Devices window An Add Bluetooth Device Wizard opens, as in Figure 14-36. Make sure that your NXT is turned on and then select the check mark in the wizard that says My device is set up and ready to be found. Then click the Next> button.

CLI and the ECMA C# language specifications. This implementation builds and runs on Windows XP, and you can also compile and run it on other operating systems such as Linux or Mac OS X. This implementation is ideal if you really want to get under the covers and see what s going on; however, you may find it more difficult to use than .NET, so you re probably best off sticking with .NET while reading this book.

If you use the alternative-install.bat batch file, Visual Studio integration will not be installed. For installing Visual Studio integration, two further batch files are available, alternative-install-vs2003.bat and alternative-install-vs2005.bat. Please note that at the time of this writing the free Express Editions of Visual Studio do not support plug-ins, so you cannot use F# integration with them.