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From dmk...@earthlink.net (David M. Karr)
Subject Re: How do I use the <html:checkbox> tag to replace of the past JSP code?
Date Thu, 01 Aug 2002 16:12:23 GMT
>>>>> "Struts" == Struts Newsgroup <(@Basebeans.com) <struts@basebeans.com>>
writes:

    Struts>     I used the following code to setup checkbox value and checked status
    Struts> before using struts.
    Struts> <%
    Struts>  if (arrSParameters != null) {
    Struts>   for (Enumeration objEnu = arrSParameters.elements() ;
    Struts> objEnu.hasMoreElements() ;) {
    Struts>    objParameter = (PLSystemParameter)objEnu.nextElement();
    Struts> %>
    Struts> <input type="checkbox" name="parameterCode"
    Struts> value="<%=objParameter.getParameterCode()%>"
    Struts> <%=HTMLTools.getCheckedString(arrSPCodes,
    Struts> objSParameter.getParameterCode())%>>
    Struts> <%
    Struts>   }
    Struts>  }
    Struts> %>
    Struts>     I used a for-loop to generate many checkboxes, and all of the
    Struts> checkboxes' values are from java beans' property. Besides, I used a function
    Struts> which utilize whether the specified java bean's property belong to a string
    Struts> array to judge if the "checked" string was showed.

    Struts>     I use the struts now. The following code is my experiment. I didn't know
    Struts> how to setup the checkbox attribut to show "checked" string.
    Struts> <logic:iterate id="objParameter" collection="<%= arrSParameters %>"
    Struts> indexId="index">
    Struts>   <html:checkbox name="objParameter" property="parameterCode" />
    Struts> </logic:iterate>

I believe the better way to do this is to use a "multibox" tag, instead of a
"checkbox" tag.  I almost wonder sometimes whether the need for "multibox" is
larger than "checkbox".  I don't have enough experience building applications
using these to really get a feeling for that.  I would think a very useful
enhancement would be a "NOTE:" in the "checkbox" documentation saying that you
should likely use "multibox" if you are tending for your "value"s to be
attribute or capability names, as opposed to "on" or "yes".

-- 
===================================================================
David M. Karr          ; Java/J2EE/XML/Unix/C++
dmkarr@earthlink.net


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