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Processing XML/RSS feeds with ColdFusion MX. Hello everyone, I wanted to write a tutorial explaining how to use XML/RSS feeds you see all over the place these days (specially on Blogs such as BlogColony.Com. First we need to define where the XML/RSS feed is located on the web, this is the direct URL to it:. URLToPull = http:/ www.easycfm.com/syndication/mostviewed.cfm. Now, let's actually output the information about the feed, in this case the site logo, title and description:. Feed provided by: BR.
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Dynamically add and remove a 'please wait' message to your complex pages. Application.cfm - -. Title Please Wait Message. Content= text/html; charset=iso-8859-1. You can use a combination of <cfflush> and javascript to show a message on the screen while processing a large data set (or any other long-running task). /p. Use cfflush to display the 'wait' message right away - -. Show the message saying there will be a delay - -. Style= color:red; background-color: #CCCCCC; width: 200px; height: 50px;.
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The CFAPPLICATION tag and Session variables. In order to use session variables, first you have to instruct the Cold Fusion server that you wish to use them. Cfapplication name=PickSomeUniqueName ClientManagement=No SessionManagement=Yes SessionTimeout=#CreateTimeSpan(0,0,30,0)#. Once you set the CFAPPLICATION tag, simply prefix any variables that you want to be access across multiple pages with "session.". For example, once you set the variable "session.userid", all of your pages can use it.
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Improving Application Performance (Part 2). Not all queries can be saved as an application variable. For Queries that do not meet the checkpoints in my previous tutorial there is another way to improve performance. Query Caching is another way to save data and eliminate unnecessary queries. This is for queries that are more dynamic in nature. For this tutorial we will look at one coldfusion task that almost everyone uses. The next-n style. A sample query for this tutorial might look something like this:.
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Creating your very own RSS XML Feeds with ColdFusion MX! Have you ever wanted to create your very own RSS Feed? DO you have anything on your site you would like others to have access to? Well, RSS (another form of XML) is easy to implement and can be very beneficial for your site and its users. The first thing we will do is to strip out WHITESPACE from our page, this is so the pages load faster when generating the RSS feeds (Also, remember that XML must have no preceding SPACES before the. Description = ...
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Add One-To-Many (Parent/Child) Data From a Single Form. How Do I Update One-To-Many-Record Forms? We'll concentrate on the fundamentals of the problem at hand. Stuff like validating form inputs, testing referers and whatnot are beyond the scope of this tutorial, although we do make use of cfqueryparam, which should be a mandatory part of all ColdFusion database operations. Approach Homer with extreme caution when carrying donuts. Watch Bart's hands at all times. Resident # #ResList.CurrentRow#. OK, we're...
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Delete Multiple Database Records Using A Checkbox. Delete Multiple Database Records Using A Checkbox. SELECT AND DELETE MULTIPLE DATABASE RECORDS WITH A CHECKBOX. Deleting one record or all records from a database table is fairly straightforward and there is a good tutorial ( #156. On that topic at easyCFM.com. Sometimes, though, to save time you may want to select multiple records for deletion just by checking a box next to the record listing. Get Information from mailing list table - -. Next to their n...
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Correct Content (document) serving! I tend to do a lot of document serving in my daily routines, by this I mean serving documents from the server to the visitor (end-user) in formats other then HTML. Such as PDF, MS Word, MS Excel, etc. Now, the easiest and fastest way to achieve this is to use CFCONTENT. You simply use CFCONTENT to serve the file (using an MS WORD AS AN EXAMPLE) as follows:. File =#ExpandPath(.)# Tutorial #URL.TutorialID#.doc. So how do we get around this? Using CFHEADER as follows:.
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Custom Tag for Multiple Related Text Boxes. I saw some tutorials on many sites which show how to develop related select boxes using ColdFusion and JavaScript. Many of them were titles Multiple Select Boxes which was a bit un-appropriate as they did not really show how many levels of hierarchy they would cover. One of them which really inspired me was here itself on EasyCFM.com. You can see it at multiple related select boxes through ColdFusion and JavaScript. Ok, so let’s start then. HTMLAFTER1= tr td St...
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A great tutorial that is found in many places, but I thought I'd also add to our listings is the alternating row color tutorial. What is this you ask? Well, this tutorial demonstrates how to alternate colors in a table when you are displaying records. Take a look at the two examples below, which do you think looks nicer and easier to read? This is a table of fake users:. Without alternating row colors). This is a table of fake users:. With alternating row colors). Let me show you how:. September 17, 2002.
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Multiple Reports with One SQL Statement. How to dynamically write reports? This is a simple way of querying your database for specific instances and only having to write one SQL query that does it all. This example is something I wrote for an Inventory Management System at my job. Here is the Results Page with the SQL Statement. Select columnname1, columnname2? Urlwhatever means you can name this url.whatever you want) - -. This basically checks the data and if the field is blank, returns a? June 05, 2009.
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