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Posted to user@struts.apache.org by Vineet Bhatia <vi...@mac.com> on 2003/05/07 00:12:21 UTC

Code for AddHiddenParameter()

This is referring to a old post I found in the archives.

http://www.mail-archive.com/struts-dev@jakarta.apache.org/msg01446.html

Basically I am (like any other web developer) trying to solve the universal
problem of maintaining state across pages (actions).

I am looking at the option of passing information in html hidden variables.

I searched the archives and found that someone had created a helper method
to handle this.

>From the old post - posted by roland huss (consol.de)

Hidden Parameters. Our extension of Action has an
  "addHiddenParameter()" method which put hidden parameters into
  request scope which our subclassed FormTag renders as
  HTML-Tags. With this method it is very easy to push parameters around
  to several actions (without polluting session scope).

Anyone know if this was contributed to struts?

Thanks in advance.
- vineet


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Re: Code for AddHiddenParameter()

Posted by Vineet Bhatia <vi...@mac.com>.
Nevermind. Found it in scaffold.

Friendly method to render hidden html fields

http://cvs.apache.org/viewcvs/jakarta-commons-sandbox/scaffold/src/java/org/
apache/commons/scaffold/text/ConvertUtils.java?rev=1.8&content-type=text/vnd
.viewcvs-markup

    /**
     * Returns parameters as a series of hidden HTML fields.
     */
    public static String renderHiddenFields(Map parameters) {

        if ((null==parameters) || (parameters.isEmpty())) return new
String();

        StringBuffer html = new StringBuffer();
        Set entries = parameters.entrySet();
        for (Iterator i = entries.iterator(); i.hasNext(); ) {
            html.append("<input type='hidden' name='");
            Entry e = (Entry) i.next();
            html.append(e.getKey());
            html.append("' value='");
            html.append(e.getValue());
            html.append("' />");
        }
        return html.toString();

     }

- vineet

On 5/6/03 6:12 PM, "Vineet Bhatia" <vi...@mac.com> wrote:

> This is referring to a old post I found in the archives.
> 
> http://www.mail-archive.com/struts-dev@jakarta.apache.org/msg01446.html
> 
> Basically I am (like any other web developer) trying to solve the universal
> problem of maintaining state across pages (actions).
> 
> I am looking at the option of passing information in html hidden variables.
> 
> I searched the archives and found that someone had created a helper method
> to handle this.
> 
> From the old post - posted by roland huss (consol.de)
> 
> Hidden Parameters. Our extension of Action has an
> "addHiddenParameter()" method which put hidden parameters into
> request scope which our subclassed FormTag renders as
> HTML-Tags. With this method it is very easy to push parameters around
> to several actions (without polluting session scope).
> 
> Anyone know if this was contributed to struts?
> 
> Thanks in advance.
> - vineet
> 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: struts-user-help@jakarta.apache.org
> 


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