Adobe ColdFusion 9 Web Application Construction Kit, Volume by Ben Forta

By Ben Forta

Written via the easiest recognized and such a lot relied on identify within the ColdFusion neighborhood, Ben Forta, The ColdFusion internet software building package is the best-selling ColdFusion sequence of all time - the books that almost all ColdFusion builders used to profit the product. This moment quantity of the sequence starts off via introducing vital code association and administration thoughts, after which progresses to themes that come with integrating with all types of alternative applied sciences (including PDF, Adobe Flex and knowledge prone, Ajax, complex SQL and databases, ORM), debugging, and optimizing functionality. From layout and making plans, to software deployment and troubleshooting, this educational reference is all you must effectively paintings, create, and development with ColdFusion nine. whole insurance of ColdFusion nine is incorporated in "Volume 1, Getting begun" (0-321-66034-X) and "Volume three, complex software improvement" (0-321-67920-2).

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While the function works just fine, it doesn’t really make anything any easier. You wouldn’t want to have to retype that function every time you wanted to display a movie’s title. com 12 chapter 22 Building User-Defined Functions Most of the time, you’ll want to keep your UDFs in separate files to make them easy to reuse in your various ColdFusion pages. cfm that contains the getFilmTitle() function. Later, as you create other film-related functions, you could put them in the same file. Once you have this file in place, you can simply include the file with a tag to use the function it contains.

If this argument isn’t provided, a default value of 200 is used. popupLeft Optional. The horizontal position of the pop-up window. If this argument isn’t provided, a default value of 300 is used. open() method. Consult a JavaScript reference for details The function uses all these pieces of information to assemble the HTML code for an anchor element (that is, an tag) containing the appropriate JavaScript code to get the desired effect. The code is returned as the function’s result (as a string).

You are still developing and testing the custom tag. Just don’t forget to restart ColdFusion so it can “find” it again if you subsequently move it to the CustomTags folder. You know you won’t use the custom tag extensively, so you don’t mind its being available only to code templates in the current folder. You want to simplify the distribution of your application and would rather not require that the custom tag template be dealt with separately. These situations aside, it’s smart to use the special CustomTags folder described earlier in this chapter.

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