You set the checkbox's value using the 'value' attribute, funilly enough
:-)
L.
王曾wang_zeng wrote:
hi:
i have a question. in a multibox,the property attribute should be pointed
to an array in the form bean,and this array will be checked to see if
there exists such a element who's value equals to the value set in the
multibox. my question is how to set the value of multibox which will be used
to find a match with in the array especially when the multibox's value dose
not equal to the label displayed on the check box in IE.
2006/4/1, Max Cooper <[EMAIL PROTECTED]>:
2 things come to mind:
1) Make sure your ActionForm has the appropriate setter method. It wont
be setDenyCodes(String value) since there can be many values. IIRC, you
need a setter that takes a String array as an argument. I could be wrong
-- do some research to be sure.
2) Make sure the URL of the submit (when using GET) doesn't get so long
that IE chops the end off. Check all the boxes (so the URL will be at
its longest) to test. I think this happens around 4000 characters or so.
Using a POST avoids this limitation in a reliable manner.
-Max
Tarun Reddy wrote:
Hi Vijay,
It's working fine now. I've just added a method="GET" attribute to
<html:form> tag. It's working perfectly fine. I don't have any idea how
this
solved the problem. Thanks for all your time.
Thanks,
Tarun.
On 3/31/06, Tarun Reddy <[EMAIL PROTECTED]> wrote:
Thanks Vijay! I've verified the value returned by
request.getParameterValues("denyCodes") even before sending out this
mail.
I don't have any clue on how to proceed further. I'll try debugging it
more.
Thanks,
Tarun.
On 3/31/06, vijay venkataraman <[EMAIL PROTECTED]> wrote:
Tarun,
If the value in being rendered is in string array pointed by the
property it will be rendered with checked attribute set. I know it
works.
It is bit weired that the set method is not being called i am not able
to find what is happening. Do you see the values coming fine in the
HttpRequest?
If you debug and view your HttpRequest - If you have *selected* some
checkboxes then you should see a parameter by name denyCodes and to
that
there will be a array containing the selected values in the array.
Sorry
i am stuck with something deep and cannot probe any further now.
Pulling
the bean util source code along with Struts source code and seeing what
happens will give you a clear idea.
Vijay Venkataraman
Tarun Reddy wrote:
Hi Vijay,
Thanks for the reply! I had a look at the HTML source generated by JSP
page
which contains multibox tag. Here are some sample entries,
<form name="denyForm" method="post" action="/testingtool/deny.do">
<table>
<tr align="center"> <input type="submit"
value="Submit"></tr>
<tr> <input type="checkbox" name="denyCodes"
value="216">216</tr>
<tr> <input type="checkbox" name="denyCodes"
value="415">415</tr>
<tr> <input type="checkbox" name="denyCodes"
value="05">05</tr>
Let me tell you, <bean:write> tag nested in the <html:multibox> tag
takes
care of setting this value attirbute to the same as label. The HTML
source
also proved that this problem is not related to setting value
attribute.
Second point is, yeah there's a slight confusion in the use of
multibox
tag.
In the specs they say that you can make ur checkboxes checked based on
the
values present in, string array in the ActionForm. But can you tell me
whether we can make selections among multiple checkboxes and then send
the
values of the checked checkboxes to the Action class? I'm surprised to
see
that the setter method was never called while submitting the form to
the
action class. Please suggest me.
On 3/31/06, vijay venkataraman <[EMAIL PROTECTED]> wrote:
The struts doc goes like this :
*Multibox:*
**
Renders an HTML <input> element of type |checkbox|, whose "checked"
status is initialized based on whether the specified value matches
one
of the elements of the underlying property's array of current values.
This element is useful when you have large numbers of checkboxes, and
prefer to combine the values into a single array-valued property
instead
of multiple boolean properties. This tag is only valid when nested
inside a form tag body.
*WARNING*: In order to correctly recognize cases where none of the
associated checkboxes are selected, the |ActionForm| bean associated
with this form must include a statement setting the corresponding
*array
to zero length in the |reset()| method.
*
See the rendered html and make sure that check boxes are rendered
with
the correct name.
I don't see you setting any value to the value attribute of multibox.
It is the value you set that is posted back.
I don't know much about bean and iteration tag.
Regards,
Vijay Venkataraman
Tarun Reddy wrote:
Hi All,
I've been wasting my time on one issue pertaining to <html:multibox>
tag.
I'm writing a code which should generate multiple checkboxes
dynamically
on
a JSP page. The JSP should send the checked checkboxes value to the
Action
class. But it's not sending any values. I've tried many approaches
like
1)initialized all the elements in the String[] to "" in the reset()
method
2)tried retrieving the checked values using String[] codes=
request.getParameterValues("denyCodes");
None of the above methods worked for me. I'm using Weblogic 8.1 and
Struts
1.2.8. I've tried with Struts 1.1 too. Here's my code.
-------------------
public class DenyForm extends ActionForm {
private String[] denyCodes= new String[80];
public String[] getDenyCodes(){
return denyCodes;
}
public void setDenyCodes(String[] denycodes){
this.denyCodes = denycodes;
}
public void reset(ActionMapping mapping, HttpServletRequest
request)
{
for(int i=0;i<80;i++){
denyCodes[i] = "";
}
}
}
------------------------denycodes.jsp page is like this,
<html:form action="deny">
<table>
<tr align="center"> <html:submit /></tr>
<logic:iterate name="denialCodes" id="code">
<tr>
<html:multibox property="denyCodes" >
<bean:write name="code" />
</html:multibox><bean:write name="code"/>
</tr>
</logic:iterate>
</table><br>
</html:form>
---------------------------------------Action Class is
public class DenyAction extends Action {
public ActionForward execute(ActionMapping mapping, ActionForm
form,
HttpServletRequest request, HttpServletResponse response)
throws
Exception{
HttpSession session = request.getSession();
DenyForm denyForm = (DenyForm)form;
String[] codes = denyForm.getDenyCodes();
// String[] codes = request.getParameterValues
("denyCodes");
log.debug("codes array length is:"+codes.length);
session.setAttribute("denyCodes",codes);
return mapping.findForward("success");
}
}
--------------------------------------------------
struts-config.xmlentry
is
like this
<form-bean name="denyForm" type="tars.form.DenyForm " />
<action path="/deny" type="tars.action.DenyAction"
name="denyForm">
<forward name="success" path="/query.jsp" />
</action>
------------------------------------------------------------------
codes.length is always returning 0 as the length. I've added some
debug
statements in the ActionForm's set method to see whether it's being
called
or not. To my surprise it was never called. That's what baffling me.
This
is
really urgent. I would really appreciate if someone could help me
out.
Thanks,
Tarun.
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