Problems
How can I create a CAPTCHA image with ColdFusion?
CAPTCHA images contain distorted text that is human-readable but not machine-readable.
The <cf...
How can I display a message on a long-running page?
By default, ColdFusion will not return any HTML until the entire page has rendered. For a long-runni...
How can I easily control the look and feel of my site?
While non-ColdFusion techniques like an effective CSS file are one way to easily control layout acro...
How can I ensure there are no leading or trailing spaces in my variable?
When working with data that you have no control over, you sometimes need to do a bit of cleanup on s...
How can I pad a variable with spaces or other characters?
If you need to pad a ColdFusion variable with spaces then you can use the build in rjustify() and lj...
How do I alternate row colors in a table?
Two functions are used in one expression which allow for a clean implementation of alternating row c...
How do I create a tag cloud from a query?
A tag cloud is a list of tags where size and color reflects popularity- the more often a tag is used...
How do I display query results in an N-column table layout?
Displaying query information in a N-column table can be done with just a bit of logic. This first bi...
How do I force a file to download instead of displaying inline in IE, Firefox and other browsers?
You can force a file to download by using a combination of the <cfheader> and <cfcontent>...
How do I output a query result set grouped by a specific field?
To generate this type of display, there are two key things to note in the code sample below. First,...
How to serve pictures from a database
You are building a web application for a Human Resources department. One part of this application is...