CFLib.org – Common Function Library Project

Description:
This is a quick way to change all FORM variables into hidden fields in another form. It is particularly useful in multi-step forms where you want to pass things on from previous forms in the current form.

Return Values:
Returns a string.

Example:

<cfset form.test = 2>
<cfset form.foo = 1>
<cfoutput>
#htmlCodeFormat(formToHidden("gogoSubmit"))#
</cfoutput>

Parameters:

Full UDF Source:

/**
 * Converts the Form structure to hidden form fields.
 * 
 * @param excludeList      A list of keys not to copy from the Form scope. Defaults to, and always includes, FIELDNAMES. 
 * @return Returns a string. 
 * @author Nathan Dintenfass (nathan@changemedia.com) 
 * @version 1, March 11, 2002 
 */
function formToHidden(){
    //a variable for iterating
    var key = "";
    //should we exlude any?  by default, no
    var excludeList = "FIELDNAMES";
    //a variable to return stuff
    var outVar = "";
    //if there is an argument, it is a list to exclude
    if(arrayLen(arguments))
        excludeList = excludeList & "," & arguments[1];
    //now loop through the form scope and make hidden fields
    for(key in form){
        if(NOT listFindNoCase(excludeList,key))
            outVar = outVar & "<input type=""hidden"" name=""" & key & """ value=""" & htmlEditFormat(form[key]) & """>";
    }
    return outVar;        
}