OK, there are about a million ways to do both of these tasks. Here is one of each:
====================================
ALTERNATING ROW COLOR:
-- easiest to use a CSS class; can alway use a hex value, as well. In this example,
issueEven and issueOdd are two classes; same except different background colors:
<cfloop query="qGetResults">
<!--- figure out row color --->
<cfif #currentRow# MOD 2 EQ 0>
<cfset rowColor = "issueEven">
<cfelse>
<cfset rowColor = "issueOdd">
</cfif>
<tr class="#rowColor#">.............
=====================
CREDIT CARD NUMBER VALID:
Here's a JS routine for this that is from shift4.com (NOTE: code can be used as long
as copyright remains in the code; this is NOT my code); put code in custom tag and
call it with this call:
<cf_testcardnumber result="result" cardnumber=#howEverYouHaveCCNumber#>
WHICH CALLS THE FOLLOWING CUSTOM TAG: (named testcardnumber.cfm)
<!---
TestCardNumber.cfm
Custom tag to perform a simple validation and card type check.
Parameters:
name See "result" below
result The variable name to place the results (name can be
used instead of
result but will require additional coding if
you ever decide to use
cfmodule)
cardnumber The card number to check
options Comma separated list of tag options -- currently, only
supported
option is NoLuhn which tells the tag to not
perform the luhn-mod-10
check on the card number
Returns:
?? = the card is not valid
AX = American Express
DC = Diners Club
JC = JCB
MC = MasterCard
NS = Novus (Discover)
VS = VISA
Copyright (C) 2002 Shift4 Corporation, Las Vegas, NV, USA (www.shift4.com) --
ALL
RIGHTS RESERVED. This code comes with no warranty expressed or implied. Use at
your
own risk. Permission is given to freely use and distribute this file (tag)
provided
this copyright notice and disclaimer are not modified or removed.
--->
<cfif not IsDefined("ATTRIBUTES.CardNumber")>
<cfabort showerror="Error calling cf_TestCardNumber: CardNumber parameter must
be specified.">
</cfif>
<cfparam name="ATTRIBUTES.Name" default="">
<cfparam name="ATTRIBUTES.Result" default="#ATTRIBUTES.Name#">
<cfif ATTRIBUTES.Result is "">
<cfabort showerror="Error calling cf_TestCardNumber: Name or Result parameter
must be specified.">
</cfif>
<cfparam name="ATTRIBUTES.Options" default="">
<cfscript>
ccnum = REReplace(ATTRIBUTES.CardNumber,"[^0-9]","","ALL");
cctyp = "??";
cclen = Len(ccnum);
if (cclen GTE 13 and cclen LTE 16) {
ccval8 = Val(Left(ccnum,8));
CRLF = Chr(13) & Chr(10);
cardranges = "AX,15,34000000,34999999"
& CRLF & "AX,15,37000000,37999999"
& CRLF & "DC,14,30000000,30999999"
& CRLF & "DC,14,36000000,36999999"
& CRLF & "DC,14,38000000,38999999"
& CRLF & "DC,14,39000000,39009999"
& CRLF & "DC,15,20140000,20149999"
& CRLF & "DC,15,21490000,21499999"
& CRLF & "JC,16,30880000,30949999"
& CRLF & "JC,16,30960000,31029999"
& CRLF & "JC,16,31120000,31209999"
& CRLF & "JC,16,31580000,31599999"
& CRLF & "JC,16,33370000,33499999"
& CRLF & "JC,16,35280000,35899999"
& CRLF & "MC,16,50000000,59999999"
& CRLF & "NS,16,60110000,60110999"
& CRLF & "NS,16,60112000,60119999"
& CRLF & "VS,13,40000000,49999999"
& CRLF & "VS,16,40000000,49999999";
for (i=1; i LTE ListLen(cardranges,CRLF); i=i+1) {
range = ListGetAt(cardranges,i,CRLF);
if (ListLen(range) EQ 4) {
if (cclen EQ Val(ListGetAt(range,2))) {
if (ccval8 GTE Val(ListGetAt(range,3)) and
ccval8 LTE Val(ListGetAt(range,4))) {
// good card as far as ranges go, do
luhn-mod-10 check for safety
if
(ListFindNoCase(ATTRIBUTES.Options,"NoLuhn") EQ 0) {
luhn = 0;
mult = 1;
for (i=cclen; i GTE 1; i=i-1) {
tmp = Mid(ccnum,i,1) *
mult;
while (tmp GT 0) {
luhn =
luhn+(tmp mod 10);
tmp =
Int(tmp/10);
}
mult = 3-mult;
}
luhn = (10-(luhn mod 10)) mod
10;
if (luhn EQ 0)
cctyp =
ListGetAt(range,1);
} else
cctyp = ListGetAt(range,1);
break;
}
}
}
}
}
</cfscript>
<cfset "CALLER.#ATTRIBUTES.Result#" = cctyp>
===================================================
>I know this has probably been asked numerous times, but I wonder if
>anyone has the CF code that alternates color on rows in a table?
>
>Also, does anyone have the CF(?) code that checks/verifies whether a
>credit card number is entered correctly?
>
>Thanks as usual.
>
>Robert O.
HWW
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