Coldfusion FileUpload function from cfc file not working -

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i trying upload file using function cfc file. can code work when call <cffile action="upload"> on same page. however, wanted learn how call function in cfc file. believe there problem arguments i'm passing attributes of <cffile> tag, i'm not sure.

here html form:

<form action="confirm.cfm" method="post" enctype="multipart/form-data">     first name: <input type="text" name="fname" size="25" /> <br />     last name: <input type="text" name="lname" size="30" /> <br />     upload attachment file here: <input type="file" name="fileupload"                                      id="fileupload" size="30"                                      onchange="passfilename()" /> <br />      <input type="hidden" name="filename" id="filename" /> <br />     <input type="submit" value="submit" />     <input type="reset" name="reset form" />     <div id="filenamesection">     </div> </form>

here code form submitting confirm.cfm page

<cfif isdefined("form.fileupload")>     <cfinvoke component="fileuploadexample"             method="uploadfile"             filetoupload="#form.fileupload#"             sizemax="50"             returnvariable="filenamereturn">     <cfelse>             <cflocation url="index.cfm">     </cfif>     <h1> thank filling out form </h1>     <cfoutput>     <table>     <h3> please review , confirm information below </h3>     <tr>         <td> first name entered </td>         <td>  #form.fname# </td>     </tr>     <tr>         <td> last name entered </td>         <td>  #form.lname# </td>     </tr>     <tr>         <td> name of file uploaded? </td>         <td>  #form.filename# </td>     </tr>     </table>     </cfoutput>      file <cfoutput> #form.filename# </cfoutput> has been uploaded

here code fileuploadexample.cfc file

<cfcomponent>     <cffunction name="uploadfile" access="public" output="no" returntype="string">         <cfargument name="filetoupload" type="string" required="no">          <cfset var cffile="">         <cffile action="upload"                 destination="c:\filepath\example\whatevafolder\"                 filefield="#arguments.filetoupload#"                 nameconflict="overwrite">         <cfreturn cffile.clientfile>     </cffunction> </cfcomponent>

the error keep receiving when upload file is:

neotmp84939430443.tmp did not contain file.

when using upload cffile, needs form field name - passing in form field value. please see this link exact method achieve trying do.


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