• Jun 30, 2010  Up until now, my previous Pusher experiments have only dealt with one-way communication: one page posted a message to Pusher's RESTful web service and another page received the message pushed down through the HTML5 WebSockets. In a chat application, the communication is much more fluid, flowing in all directions from client to client (by proxy). I am, of course, not building a.
• Basiclly what I need is any Web Service or RESTful Service that can import the CVS or TXT file to any database server,(MySQL or MS SQl Server,etc), Secondly Any Idea, that how will application recognise that the database has been updated, with the new entry on runtime, (eg. If a webpage is active or say being browsed it can be refreshed,how can the Application be refreshed) If these two events.
• Adobe ColdFusion examples code for web developers. ColdFusion - How to get total number of elements in a List ListLen - get total number of elements in a List.
• I'm very new to ColdFusion - I'm building forms in Deamweaver, then using Cld fusion to pass he data to an Access Database. So far, so good. But I'd like to disable the enter button, so that the form is only submitted when the end-user hits the 'submit' button so I don't have a bunch of semi-completed forms in my database.
• The i-fax.com Plug-In is split into two parts. The Barcode Generator The Barcode Generator takes any value generated by your application that you want to use to uniquely identify a document (such as a transaction key or a record number) and generates a barcode that can be inserted into a web page generated by your application.

ColdFusion lets you use the cfform tag to create PDF forms that contain static and interactive form fields. The cfform tag must exist within a cfdocument tag (where format='pdf'). Only one cfform tag can exist within a cfdocument tag.Completed forms can be posted to the server as an HTTP Post, or the entire PDF can be submitted as binary stream.

The cfform tag and its CFML subtags let you create dynamic forms in three formats:

• HTML Generates standard HTML tags wherever possible, and uses applets or Flash for more complex controls, such as grids, trees, and calendars. HTML lets you present a familiar appearance, but does not let you easily separate data and presentation, or provide some of the more complex structures, such as Flash tabbed navigators or accordions, or customized XML controls.
• Flash Presents a modern, visually pleasing appearance. Flash format supports several controls, such as tabbed navigators and accordions, that are not available in HTML. Flash forms are also browser-independent. In Flash format, Flash Player works in all commonly used browsers on Windows and Macintosh systems, and in Netscape and Mozilla on Linux.
• XML Lets you specify an Extensible Stylesheet Language Transformation (XSLT) skin that converts the XML into styled HTML output. Adobe ColdFusion provides several skins that you can use, and you can write your own custom skins and support custom controls.The cfform tag and its subtags also provide you with several methods for validating input data. For example, you can perform the validation on the browser or on the server. You can check the data type, or you can mask data input.Individual cfform tags have additional dynamic features. Several of the tags do not have HTML counterparts, and others directly support dynamically populating the control from data sources. Also, the cfform tag preservedata attribute retains user input in a form after the user submits the form, so the data reappears if the form gets redisplayed.The information here describes features of the cfform tag and focuses on using several of the cfform child tags that do not have HTML counterparts. For other features of ColdFusion forms that you create using the cfformtag, see the following:

The cfform controls

The following table describes the ColdFusion controls that you use in forms created using the cfform tag. You can use these tags only inside a cfform tag. Unless otherwise stated, these controls are supported in HTML, Flash, and XML skinnable forms.

Preserving input data with the preservedata attribute

The cfform preservedata attribute tells ColdFusion to continue displaying the user data in a form after the user submits the form. Data is preserved in the cfinput, cfslider, cftextinput, and cftree controls and in cfselect controls populated by queries. If you specify a default value for a control, and a user overrides that default in the form, the user input is preserved.
You can retain data on the form when the same page contains the form and the form's action code; that is, the form submits to itself. You can also retain the data if the action page has a copy of the form, and the control names are the same in the forms on both pages. (The action page form need not be identical to the initial form. It can have more or fewer elements than the initial page form; only the form elements with identical names on both pages keep their data.)

For example, if you save this form as preserve.cfm, it continues to display any text that you enter after you submit it, as follows:

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Usage notes for the preservedata attribute

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When you use the preservedata attribute, follow these guidelines:

• In the cftree tag, the preservedata attribute causes the tree to expand to the previously selected element. For this to work correctly, set the completePath attribute to True.
• The preservedata attribute has no effect on a cfgrid tag. If you populate the control from a query, update the data source with the new data (typically by using a cfgridupdate tag) before redisplaying the grid. The grid then displays the updated database information.

Browser considerations

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The applet-based versions of the cfgrid, cfslider, and cftree forms use JavaScript and Java to display their content. To allow them to display consistently across a variety of browsers, these applets use the Java plug-in. As a result, they are independent of the level of Java support provided by the browser.
ColdFusion downloads and installs the browser plug-in if necessary. Some browsers display a single permission dialog box asking you to confirm the plug-in installation. Other browsers, like older versions of Netscape, require you to navigate some simple option windows.
Because the controls use JavaScript to return data to ColdFusion, if you disable JavaScript in your browser, it cannot properly run forms that contain these controls. In that case, the controls still display, but data return and validation does not work and you can receive a JavaScript error.
Because Java is handled by the plug-in and not directly by the browser, disabling Java execution in the browser does not affect the operation of the controls. If for some other reason, however, the browser is unable to render the controls as requested, a 'not supported' message appears in place of the control.
You can use the cfform tag's notsupported attribute to specify an alternative error message.
You can avoid browser Java and JavaScript issues with the cfgrid and cftree controls by using the Flash format versions of these controls. These controls work on Windows, Mac OS X, and Linux, and do not rely on Java support. There is no Flash version of the cfslider control, and there is no applet version of the cfcalendar control.