On 10/2/07, Andy Matthews <[EMAIL PROTECTED]> wrote:
> Say that I have a list of allowed nmbers:
> 32,48,64,72,144,160,200,288,320,400,512,576,640,720,800
>
> If I give the user the option of selecting a number, and it happens to not be
> in this list, how might I go about automagically selecting the next lowest
> number? One exception being if the user selects a number lower than 32, in
> which case the code should return 32.
>
> Examples:
> User selects 100, the code would return 72.
> User selects 480, the code would return 400.
> User selects 25, the code would return 32.
>
> Currently the numbers are stored in a simple list, but I have control over
> that list and they can be in whatever format makes the most sense. One caveat
> is that they need to stay in code (so no database interaction).
dunno if this is particularly elegant or not... :)
<cfset myList = "32,48,64,72,144,160,200,288,320,400,512,576,640,720,800" />
<cfset userSelect = 25 /> <!--- user's selected number here --->
<cfset userAnswer = "" /> <!--- the value to be returned here --->
<cfif listFind(myList, userSelect) GT 0>
<cfset userAnswer = userSelect />
<cfelse>
<cfset myNewList = listSort(myList, 'numeric') />
<cfloop list="#myNewList#" index="idx">
<cfif userSelect LTE idx>
<cfset userAnswer = idx />
<cfbreak />
</cfif>
</cfloop>
<cfif listFind(myNewList, userAnswer) NEQ 1>
<cfset userAnswer = listGetAt(myNewList, listFind(myNewList,
userAnswer)-1) />
</cfif>
</cfif>
<cfoutput>#userAnswer#</cfoutput>
--
Charlie Griefer
================================================
"...All the world shall be your enemy, Prince with a Thousand Enemies,
and whenever they catch you, they will kill you. But first they must catch
you, digger, listener, runner, prince with a swift warning.
Be cunning and full of tricks and your people shall never be destroyed."
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