error on form field names

[masoud_amen]

Hi.I have a code on admin part which works fine.I did the same code for the web site:

<cfform name="form" id="form" action="#urlPath#submitLinks#extension#" method="post">

<table class="tabformat" border="0" cellpadding="2" cellspacing="1" width="400">
<tr>
<td class="tabhead">Url:</td>
<td class="tabdata"><input type="text" name="linkUrl" value="" size="60"></td>
</tr>
<tr>
<td class="tabhead">Url Text:</td>
<td class="tabdata"><input type="text" name="linkUrlText" value="" size="60"></td>
</tr>
<tr>
<td class="tabhead">Description:</td>
<td class="tabdata"><input type="text" name="linkUrlDescription" value="" size="60"></td>
</tr>
<!--- <tr>
<td class="tabhead">Referring Url:</td>
<td class="tabdata"><input type="text" name="linkUrlRefer" value="<CFOUTPUT>#link.link_referer#</CFOUTPUT>" size="60"></td>
</tr> --->
<tr>
<td class="tabhead">Category:</td>
<td class="tabdata"><select name="linkCategory"><CFOUTPUT query="categories"><option value="#link_cat_id#">#categories.link_cat_name#</option></CFOUTPUT></select></td>
</tr>

<tr>
<td colspan="2" class="tabdata" align="center"><input type="submit" value="Add Link"></td>
</tr>
</table>
</cfform>

but when I submit the form the error is: Element LINKCATEGORY is undefined in FORM.
I've test so many things but it didnt work because doesnt know none of my form fields:

<cfoutput>#form.linkCategory#</cfoutput> OR <cfoutput>#form.linkUrl#</cfoutput>,....

what should I do?what is wrong?
thanks

[Dan_Bracuk]

Since your action page is a combination of 3 variables, it's possible that your code is on the wrong page.

cfdump your form at the start of your action page and see what variables actually are there.

[masoud_amen]

the action goes to the right page.when I write <cfoutput>hello</cfoutput> I can see it on action page,but when I write <cfdump var="#form#">the result is STRUCT[EMPTY].
I really have no idea what is wrong.