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Element is undefined in a Java object of type class coldfusion.filter.UrlScope.

Posted on 2009-05-13
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Last Modified: 2012-05-06
The body of code below thows the following error:

Element 10 is undefined in a Java object of type class coldfusion.filter.UrlScope.  
 
 
The error occurred in C:\nwmdev\apache\Apache2\htdocs\workspace\pdm\fusebox\login.cfm: line 51
 
49 : <cfloop collection="#url#" item="i">
50 :             <cfif NOT ListFindNoCase(ListIgnore, i, ",") and isAlphaNumeric(i)>
51 :                   <cfset uRow = listAppend(uRow,"#LCase(i)#/#LCase(URL[i])#","/")>
52 :             </cfif>
53 : </cfloop>
 
Note that the URL struct when dumped looks something like this::

struct
/WWW.SAFWE.COM WIDTH=900 HEIGHT=1100>:: [empty string]  
ERROR:: [empty string]  
FUSE:: login  
REDIRECT:: [empty string]  
REINIT:: false  
SUBMITTED:: &amp;gt;&amp;#x22;&amp;gt;&amp;lt;/title&amp;gt;&amp;lt;/iframe&amp;gt;&amp;lt;/script&amp;gt;&amp;lt;/form&amp;gt;&amp;lt;/td&amp;gt;&amp;lt;/tr&amp;gt;&amp;lt;br&amp;gt;&amp;lt;iFraMe src=http:/  

Can anyone help me find the reason for this error.

// Returns true if the string only contains alpha numeric characters (empty string = true)
function isAlphaNumeric(txt) {
	return ValidString(txt,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789');
}
 
// Returns true if the CheckString only contains characters passed in ValidString (empty string = true)
function ValidString(ChkString,ValidString) {
	for (i=1; i LTE Len(ChkString); i=i+1) {
		if (FindNoCase(Mid(ChkString,i,1), ValidString) eq 0) return false;
	}
	return true;
}
</cfscript>
 
 
<cfloop collection="#url#" item="i">
		<cfif NOT ListFindNoCase(ListIgnore, i, ",") and isAlphaNumeric(i)>
			<cfset uRow = listAppend(uRow,"#LCase(i)#/#LCase(URL[i])#","/")>
		</cfif>
</cfloop>

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Question by:onaled777
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2 Comments
 
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Accepted Solution

by:
_agx_ earned 500 total points
ID: 24378816
It is probably a scoping clash.  In your function you are using a variable named "i" and also using that same variable name as your <cfloop> index. Since your function variables are not properly scoped, ValidString ends up overwriting or clashing with your cfloop index.

_Always_ var scope _all_ function local variables.  In other words, if a variable is only used in the function, place it in the VAR scope.  Also, you might consider using the newer cffunction syntax instead. It has some benefits over the old udf syntax.

// Returns true if the CheckString only contains characters passed in ValidString (empty string = true)
function ValidString(ChkString,ValidString) {
      var i = 0;
        for (i=1; i LTE Len(ChkString); i=i+1) {
                if (FindNoCase(Mid(ChkString,i,1), ValidString) eq 0) return false;
        }
        return true;
}
</cfscript>

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by:onaled777
ID: 24379140
THANK YOU SO MUCH!
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