I get the following error: "cfgridapplet.class not found" when you try to use my site that is coded with ColdFusion.

What is the problem?  Perhaps Java version?  IE version?

Someone there troubleshooting tips?

I'm not a ColdFusion programmer, but am pretty tech savvy.

Any help is greatly appreciated.

Ok.  You are on a version really old and not supported in ColdFusion.  At the time, CFGRID control was an option to use an applet (also Flash via HTML and Flex) for the interface of the grid. Java applets are now no longer supported with many modern browsers.  Even if they are, the CF7 Java applets are not compatible with Java 7 (maybe not even 6) which is apparently what is running on the client (your computer).  To my knowledge, these Java applets have not been updated to run on newer versions of Java.  You will need Explorer moving to one of the other that cfgrid supports formats (HTML or Flash/Flex).  I suggest strongly several things, however:

  • If possible, upgrade your version of ColdFusion - CF7 is long past support and has to many security problems that cannot be corrected.  CF10, CF11 and CF2016 are currently supported versions and can run on Java 8 (the current version of Java).
  • If possible, replace the implementation of CFGRID controls:
    • At a minimum, see if you can make HTML format works.  Flex/Flash may not be a viable alternative as browsers begin to remove support for Flash and the Flash plugin is notorious for security vulnerabilities.
    • A more long-term solution would be to replace the CFGRID with a grid controls based on a JavaScript library that is well supported client-side (my favorite is the combination of jQuery and the plugin Datatables , but there are tons of other similar libraries out there).

Tags: ColdFusion

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