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loop problem.

Posted on 2003-11-20
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Last Modified: 2013-12-24
When this loop reaches its last iteration, the condition is is coming back as undefined , which causes the page to not load properly :
<cfloop CONDITION= "#questions[i].XmlAttributes["TYPE"]# EQ 2">
  <cfoutput>
    <OPTION VALUE="#questions[i].XmlAttributes["CAPTION"]#">#questions   [i].XmlAttributes["CAPTION"]#
  </cfoutput>
<cfset i = i + 1>
</cfloop>

So how do I get this loop to work as I need the condition to be what it is in order for the loop to work effectively.
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Question by:spunog
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7 Comments
 
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Accepted Solution

by:
hart earned 500 total points
ID: 9786869
the thing is ur logic is not proper.
because the i will keep on incrementing...

u will have to run a loop on the array length of question...

then inside the loop u will have to check wether
<cfoutput>
<cfloop from="1" to="arrayLen(question)" index="i">
<cfif questions[i].XmlAttributes["TYPE"] EQ 2>
<OPTION VALUE="#questions[i].XmlAttributes["CAPTION"]#">#questions   [i].XmlAttributes["CAPTION"]#
</cfif>
</cfloop>
</cfoutput>

let me know

Regards
Hart
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LVL 11

Expert Comment

by:hart
ID: 9786877
change to="arrayLen(question)"
this to to="#arrayLen(question)#"

i hope this will work.. but the basic logic is to run a loop on he length of the questions..

hope u understand what i am trying to say

Regards
Hart
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LVL 11

Expert Comment

by:hart
ID: 9786878
change to="arrayLen(question)"
this to to="#arrayLen(question)#"

i hope this will work.. but the basic logic is to run a loop on he length of the questions..

hope u understand what i am trying to say

Regards
Hart
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Expert Comment

by:mrichmon
ID: 9788630
No I think what spunog is trying to do is to only run this loop when the question type is 2.

I am guessing that this is because questions of type 2 require selects as the form of answer.

I am thinking that it is possible that the double quotes are the problem since CF could be reading it as this :

CONDITION= "#questions[i].XmlAttributes["

Actually if I were you I would rewrite the code as one large loop over i and then use an if for this question like this :

<cfloop index="i" from="1" to="#ArrayLen(question)#">
<cfoutput>
<cfif questions[i].XmlAttributes["TYPE"] EQ 2>
<OPTION VALUE="#questions[i].XmlAttributes["CAPTION"]#">#questions   [i].XmlAttributes["CAPTION"]#
</cfif>
</cfoutput>
</cfloop>

But you could also try replacing the inner double quotes with single quotes and see if that works too.

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LVL 9

Expert Comment

by:shooksm
ID: 9789821
Just use XPath to get only the elements you wish to use.  I am not a 100% sure on the structure of the XML doc you are using but you should be able to do something like the following:

<cfset aryCaptions = XmlSearch(questions, "*/questions[@type=""2""]")>
<SELECT>
<cfloop index="i" from="1" to="#ArrayLen(aryCaptions)#">
<cfoutput>
<OPTION VALUE="#aryCaptions[i].XmlAttributes["CAPTION"]#">#aryCaptions[i].XmlAttributes["CAPTION"]#</OPTION>
</cfoutput>
</cfloop>
</SELECT>

This will filter out any questions where the type attribute equals 2.  Again, depending on the structure of your XML doc, you may not need the */ at the beginning of the XPath query.
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by:hart
ID: 9794223
mrichmon, how is ur post different from mine????
have u given something that i haven't.

its just the duplicate....

Regards
Hart
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Expert Comment

by:hart
ID: 9795792
thnkx for the A
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