Re: Select Multiple Issues

[Jeff Beal]

It's related to a difference in how the HTTP request parameters are 
built.  With the "indexed properties" that you had, the BeanUtils 
classes are going to look for parameters whose names include the index. 
 That is 'bar[1]', 'bar[2]', etc.

HTML:select with multiple=true sends multiple parameters, all with the 
name of 'bar'.  So, instead of 'bar[1]=1&bar[2]=2' the HTTP request will 
just be 'bar=1&bar=2'.  The Java Servlet API exposes these multiple 
requests with the same name as a String[], or the first one as a single 
String.

The only time the Struts ActionForm framework is going to call an 
ActionForm setter 'setBar(int index, String value)' is if the request 
includes parameters named as in the first example.  It will call the 
setter 'setBar(String[] values)' if it sees multiple values for the same 
parameter.

-- Jeff
Will Stranathan wrote:
THANKS!  After all that work, I *think* BeanUtils was having issues with 
setNumber(int, String) for some reason - when I took out the setters for 
indexed values, and just have setters/getters for the arrays - it works 
like a champ!

Thanks a TON!
Will Stranathan
On Mon, 24 Jan 2005 15:16:55 -0600
 "Brad Balmer" <[EMAIL PROTECTED]> wrote:
I have ActionForm's that contain String array variables like:
private String[] parmTypeCd = null;
With the normal:
public String[] getParmTypeCd() {
    return parmTypeCd;
}
public void setParmTypeCd(String parmTypeCd[]) {
    this.parmTypeCd = parmTypeCd;
}
My form has:
<html:select property="parmTypeCd" multiple="true" size="3">
    <html:option value="1">Value1</html:option>
    <html:option value="2">Value2</html:option>
    ...
</html:select>
Then, underneath I build my ArrayList to pass to my iBatis query like:
ArrayList parmTypeCds = null;
if(form.getParmTypeCd() != null && form.getParmTypeCd().length > 0) {
    parmTypeCds = new ArrayList();
     String typeCds[] = form.getParmTypeCd();
     for(int i=0; i<form.getParmTypeCd().length; i++) {
         parmTypeCds.add(typeCds[i]);
       }
}
Pretty simple.  There may be a better way to do it, but this works 
just fine
for me.

--Brad

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