ColdFusion 4.0 Primer
3. CFIF, CFELSE, CFELSEIF
If you're familiar with any programming language you should be familiar with the concepts behind conditional code. I will now discuss the CF syntax for doing it. Every <CFIF> tag must have a matching </CFIF> tag, the <CFELSE> and <CFELSEIF> tags are completely optional. You may use as many <CFELSEIF> tags as needed, however you may use only one <CFELSE> tag per <CFIF> tag, and the <CFELSE> tag must always come last.
<CFIF Login IS "True"> Welcome. <CFELSEIF Login IS "False"> Sorry, we could not log you in. <CFELSE> The was a problem processing your request, please try again or contact the server admin. </CFIF>
When comparing values within the CFELSEIF and CFIF tags you may use the following operators:
- IS - Login IS "True"
- IS NOT - Login IS NOT "True"
- CONTAINS - "KY, MI, CA, FL" CONTAINS State
- DOES NOT CONTAIN - "MI, OH, CA" DOES NOT CONTAIN State
- GREATER THAN - Age GREATER THAN "13"
- LESS THAN - Age LESS THAN "62"
- GREATER THAN OR EQUAL TO - Age GREATER THAN OR EQUAL TO "13"
- LESS THAN OR EQUAL TO - Age LESS THAN OR EQUAL TO "62"
4. CFINCLUDE
To do SSI style includes using CF you should be using the <CFINCLUDE> tag.
<CFINCLUDE TEMPLATE = "include.htm">
I think it is very straightforward and needs no explanation. However unlike SSI you can only use relative paths to the file to be included.
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