Does the second <select> element's options change when the first
<select> element is changed?

Is the second <select> element's options based on what was selected
in the first <select> element?

How do you get the JSP to re-render when the first <select> element
is changed?

> -----Original Message-----
> From: Hanen Ben Rhouma [mailto:hanen105@(protected)]
> Sent: Wednesday, January 06, 2010 11:50 AM
> To: Struts Users Mailing List
> Subject: Re: Why optionscollection doesn't persist the clicked value
>
> When re-rendered it displays two drop down lists filled with
> two collections
> results but blank default value shown on both of them while I
> need to keep
> the first selected value shown to the user.
>
> On Wed, Jan 6, 2010 at 5:21 PM, Kawczynski, David <
> david_kawczynski@(protected):
>
> > That's odd.
> >
> > If you were to <struts:write> the actionform's property
> > when the page is re-rendered, what does it contain?
> >
> >
> >
> > > -----Original Message-----
> > > From: Hanen Ben Rhouma [mailto:hanen105@(protected)]
> > > Sent: Wednesday, January 06, 2010 10:54 AM
> > > To: Struts Users Mailing List
> > > Subject: Re: Why optionscollection doesn't persist the
> clicked value
> > >
> > > Yes it is.
> > >
> > > On Wed, Jan 6, 2010 at 4:19 PM, Kawczynski, David <
> > > david_kawczynski@(protected):
> > >
> > > > To further clarify:
> > > > Is the optionscollection inside an <html:select> element?
> > > > Is the scope of the corresponding action-form "session"?
> > > >
> > > > > -----Original Message-----
> > > > > From: Kawczynski, David
> > > > > Sent: Wednesday, January 06, 2010 9:46 AM
> > > > > To: Struts Users Mailing List
> > > > > Subject: RE: Why optionscollection doesn't persist the
> > > clicked value
> > > > >
> > > > > Is the scope of the corresponding action-form "session"?
> > > > >
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Hanen Ben Rhouma [mailto:hanen105@(protected)]
> > > > > > Sent: Wednesday, January 06, 2010 5:26 AM
> > > > > > To: Struts Users Mailing List
> > > > > > Subject: Why optionscollection doesn't persist the
> clicked value
> > > > > >
> > > > > > Hello,
> > > > > >
> > > > > > I don't understand why optionscollection doesn't persist the
> > > > > > clicked value.
> > > > > >
> > > > > > I'm using many of them: second one is filled after selecting
> > > > > > one parameter
> > > > > > from the first one and so on but the thing is that
> after each
> > > > > > selection it
> > > > > > reloads the jsp page without persisting the first clicked
> > > > > > value in the drop
> > > > > > down list.
> > > > > >
> > > > > > Do someone know the reason or even a tricky workaround ?
> > > > > >
> > > > > > Thanks in advance
> > > > > >
> > > > Notice: This e-mail message, together with any
> > > attachments, contains
> > > > information of Merck & Co., Inc. (One Merck Drive,
> > > Whitehouse Station, New
> > > > Jersey, USA 08889), and/or its affiliates Direct contact
> > > information for
> > > > affiliates is available at
> > > http://www.merck.com/contact/contacts.html)
> > > > that may be confidential, proprietary copyrighted and/or
> > > legally privileged.
> > > > It is intended solely for the use of the individual or
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> > > received this
> > > > message in error, please notify us immediately by reply
> > > e-mail and then
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> > > >
> > > >
> > > >
> > >
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> > > >
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The collection used in an optionscollection object
doesn't keep track of which option was selected; that
is done via <html:select> and whatever action-form
property that <html:select> is bound to. The <html:select>
object will take care of re-rendering the selected object
if your action-form is maintained in session scope, and
your action-form has a property to store the first <select>
element's value, and you use <html:select> to render the
first <select> element, and you have the <select> element's
onchange attribute submit the form
(EG onchange="document.getElementById('formId').submit();")

HTH,
-dave


> -----Original Message-----
> From: Hanen Ben Rhouma [mailto:hanen105@(protected)]
> Sent: Wednesday, January 06, 2010 12:46 PM
> To: Struts Users Mailing List
> Subject: Re: Why optionscollection doesn't persist the clicked value
>
> Actually the second <select> starts by being greyed out,
> after selecting one
> parameter in the first list it will be filled with the
> collection of values
> (retrieved after knowing what the user has selected in the
> first <select>).
>
> I just keep the first collection into session and call the
> struts action
> through the "onchange" javascript method so it reloads the
> first collection
> and execute the action just by selecting one value.
>
>
> On Wed, Jan 6, 2010 at 6:02 PM, Kawczynski, David <
> david_kawczynski@(protected):
>
> > Does the second <select> element's options change when the first
> > <select> element is changed?
> >
> > Is the second <select> element's options based on what was selected
> > in the first <select> element?
> >
> > How do you get the JSP to re-render when the first <select> element
> > is changed?
> >
> > > -----Original Message-----
> > > From: Hanen Ben Rhouma [mailto:hanen105@(protected)]
> > > Sent: Wednesday, January 06, 2010 11:50 AM
> > > To: Struts Users Mailing List
> > > Subject: Re: Why optionscollection doesn't persist the
> clicked value
> > >
> > > When re-rendered it displays two drop down lists filled with
> > > two collections
> > > results but blank default value shown on both of them while I
> > > need to keep
> > > the first selected value shown to the user.
> > >
> > > On Wed, Jan 6, 2010 at 5:21 PM, Kawczynski, David <
> > > david_kawczynski@(protected):
> > >
> > > > That's odd.
> > > >
> > > > If you were to <struts:write> the actionform's property
> > > > when the page is re-rendered, what does it contain?
> > > >
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: Hanen Ben Rhouma [mailto:hanen105@(protected)]
> > > > > Sent: Wednesday, January 06, 2010 10:54 AM
> > > > > To: Struts Users Mailing List
> > > > > Subject: Re: Why optionscollection doesn't persist the
> > > clicked value
> > > > >
> > > > > Yes it is.
> > > > >
> > > > > On Wed, Jan 6, 2010 at 4:19 PM, Kawczynski, David <
> > > > > david_kawczynski@(protected):
> > > > >
> > > > > > To further clarify:
> > > > > > Is the optionscollection inside an <html:select> element?
> > > > > > Is the scope of the corresponding action-form "session"?
> > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: Kawczynski, David
> > > > > > > Sent: Wednesday, January 06, 2010 9:46 AM
> > > > > > > To: Struts Users Mailing List
> > > > > > > Subject: RE: Why optionscollection doesn't persist the
> > > > > clicked value
> > > > > > >
> > > > > > > Is the scope of the corresponding action-form "session"?
> > > > > > >
> > > > > > >
> > > > > > > > -----Original Message-----
> > > > > > > > From: Hanen Ben Rhouma [mailto:hanen105@(protected)]
> > > > > > > > Sent: Wednesday, January 06, 2010 5:26 AM
> > > > > > > > To: Struts Users Mailing List
> > > > > > > > Subject: Why optionscollection doesn't persist the
> > > clicked value
> > > > > > > >
> > > > > > > > Hello,
> > > > > > > >
> > > > > > > > I don't understand why optionscollection
> doesn't persist the
> > > > > > > > clicked value.
> > > > > > > >
> > > > > > > > I'm using many of them: second one is filled
> after selecting
> > > > > > > > one parameter
> > > > > > > > from the first one and so on but the thing is that
> > > after each
> > > > > > > > selection it
> > > > > > > > reloads the jsp page without persisting the
> first clicked
> > > > > > > > value in the drop
> > > > > > > > down list.
> > > > > > > >
> > > > > > > > Do someone know the reason or even a tricky workaround ?
> > > > > > > >
> > > > > > > > Thanks in advance
> > > > > > > >
> > > > > > Notice: This e-mail message, together with any
> > > > > attachments, contains
> > > > > > information of Merck & Co., Inc. (One Merck Drive,
> > > > > Whitehouse Station, New
> > > > > > Jersey, USA 08889), and/or its affiliates Direct contact
> > > > > information for
> > > > > > affiliates is available at
> > > > > http://www.merck.com/contact/contacts.html)
> > > > > > that may be confidential, proprietary copyrighted and/or
> > > > > legally privileged.
> > > > > > It is intended solely for the use of the individual or
> > > > > entity named on this
> > > > > > message. If you are not the intended recipient, and have
> > > > > received this
> > > > > > message in error, please notify us immediately by reply
> > > > > e-mail and then
> > > > > > delete it from your system.
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > >
> ---------------------------------------------------------------------
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> > > > > >
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> > > > Jersey, USA 08889), and/or its affiliates Direct contact
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> > > >
> > >
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> > Jersey, USA 08889), and/or its affiliates Direct contact
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Paweł Wielgus escribió:
> Hi,
> sorry for too fast response,
> i see that it is implementing it,
> another thing to notice is that
> in action You have access to session field which is a map constructed
> by struts, not real session object - as far as i remember.
> In jsp you can do < s:property value="session.get('variable')" > to
> show key from session in jsp.
>
> Hope that it will help,
> Pawel Wielgus.
>
> 2010/1/6, Sergio <killing-is-my-business@(protected)>:
>  
>> Paweł Wielgus escribió:
>>  
>>> Hi Sergio,
>>> add SessionAware interface to your action.
>>>
>>> Best greetings,
>>> Pawel Wielgus.
>>>
>>> 2010/1/5, Sergio <killing-is-my-business@(protected)>:
>>>
>>>    
>>>> Sergio escribió:
>>>>
>>>>      
>>>>> Hi people,
>>>>>
>>>>> i'm a newbie to struts2. I'm having too many problems modifing session
>>>>> parameters. I use <%= session.getAttribute( "variable" ) %> to gain
>>>>> access to "variable" and that works when i modify "variable" into a
>>>>> jsp page, but not inside a struts action.
>>>>>
>>>>> struts.xml:
>>>>>
>>>>> <?xml version="1.0" encoding="UTF-8" ?>
>>>>> <!DOCTYPE struts PUBLIC
>>>>>  "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
>>>>>  "http://struts.apache.org/dtds/struts-2.0.dtd">
>>>>>
>>>>> <struts>
>>>>>
>>>>>  <constant name="struts.enable.DynamicMethodInvocation" value="false"
>>>>> />
>>>>>  <constant name="struts.devMode" value="true" />
>>>>>
>>>>> <package name="tads" namespace="/" extends="struts-default">
>>>>>
>>>>> <action name="HolaMundo" class="tads.HolaMundo">
>>>>> <result>/holaMundo.jsp</result>
>>>>> </action>
>>>>>
>>>>> <action name="Catalogo" class="tads.Catalogo">
>>>>>   <result name="error">/ErrorCatalogo.jsp</result>
>>>>>   <result>/Catalogo.jsp</result>
>>>>>  </action>
>>>>>
>>>>> <action name="Actualiza" class="tads.Actualiza">
>>>>>   <result>/Actualiza.jsp</result>
>>>>>  </action>
>>>>>
>>>>>
>>>>>
>>>>> </package>
>>>>>
>>>>> </struts>
>>>>>
>>>>> extract from a jsp page, result from an ajax action working:
>>>>>
>>>>> <s:form id="form" >
>>>>>           <s:textfield name="politico" label="politico"/><br>
>>>>>           <s:hidden name="prueba" value="escondido" />
>>>>>          </s:form>
>>>>>          <s:url id="actualiza" value="/Actualiza.action" />
>>>>>
>>>>> <sx:submit type="button" label="dale" href="%{actualiza}"
>>>>> formId="form" align="center" targets="secondaryContent"/>
>>>>>
>>>>> i see "politico" and "prueba" into Actualiza.action so the action
>>>>> Actualiza works.
>>>>>
>>>>> Actualiza.java:
>>>>>
>>>>> package tads;
>>>>> import java.util.*;
>>>>>
>>>>> import javax.servlet.http.HttpSession;
>>>>> import com.opensymphony.xwork2.ActionSupport;
>>>>> import org.apache.struts2.interceptor.SessionAware;
>>>>> import com.opensymphony.xwork2.ActionContext;
>>>>>
>>>>>
>>>>> @SuppressWarnings("serial")
>>>>> public class Actualiza extends ActionSupport implements SessionAware {
>>>>>  private String politico;
>>>>>  private String prueba;
>>>>>  private Map session;
>>>>>   public String execute() throws Exception {
>>>>>
>>>>>     this.getSession().put("variable","pruebamil");
>>>>>     return SUCCESS;
>>>>>     }
>>>>>  public String getPolitico() {
>>>>>     return politico;
>>>>>  }
>>>>>
>>>>>  public void setPolitico(String politico) {
>>>>>     this.politico = politico;
>>>>>  }
>>>>>
>>>>>  public String getPrueba() {
>>>>>     return prueba;
>>>>>  }
>>>>>
>>>>>  public void setPrueba(String prueba) {
>>>>>     this.prueba = prueba;
>>>>>  }
>>>>>  public void setSession(Map session) {
>>>>>     this.session = session;
>>>>>   }
>>>>>      public Map getSession() {
>>>>>     return session;
>>>>>   }
>>>>> }
>>>>>
>>>>> in that situation. Actualiza.jsp doesn't show "variable" atribute from
>>>>> session, using "<%= session.getAttribute( "variable" ) %>". It shows
>>>>> null.
>>>>>
>>>>> can anybody help me? I'm doing exactly what struts2 FAQ say (How do we
>>>>> get access to the session).
>>>>>
>>>>> thanks in advance.
>>>>>
>>>>>
>>>>>      
>>>> i've tried with
>>>>
>>>>     <%= session.getAttribute( "variable" ) %>
>>>>
>>>> and
>>>>
>>>>     <s:property value="#session.variable"></s:property>
>>>>
>>>> and surprise, both works. After closing and opening eclipse 3.4.0 works.
>>>> I think this is a bad memory managing of eclipse. Does anybody knows
>>>> something about this?
>>>>
>>>> --
>>>> Sergio
>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: user-unsubscribe@(protected)
>>>> For additional commands, e-mail: user-help@(protected)
>>>>
>>>>
>>>>
>>>>      
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: user-unsubscribe@(protected)
>>> For additional commands, e-mail: user-help@(protected)
>>>
>>>
>>>
>>>
>>>    
>> public class Actualiza extends ActionSupport implements SessionAware
>>
>> is that?
>>
>> thanks for replying
>>
>>
>> --
>> Sergio
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@(protected)
>> For additional commands, e-mail: user-help@(protected)
>>
>>
>>  
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@(protected)
> For additional commands, e-mail: user-help@(protected)
>
>
>
>  
as far as i remember :) "< s:property value="session.get('variable')" >"
didn't work because the "get" method. Both "<%= session.getAttribute(
"variable" ) %>" and "<s:property
value="#session.variable"></s:property>" worked, but i had to close and
open eclipse. Bad memory management of eclipse i think.

thanks for your fast reply :)

--
Sergio

If you will submit multiple EmpBean, your action will need some sort
of Collection<EmpBean> (a List or Map I commonly use) with its getter
& setter.

You must name correctly your input parameters so that the
ParameterInterceptor assign them right, that is, you name it as the
collection variable, indexed by some key (if using a List the index is
an integer >= 0, if using a Map, anything that can be used as a map
key.)

when you "Add" a new EmpBean, you create hidden fields with the following names:

<input type="hidden" name="myCollection[0].first_name" value="..." />
<input type="hidden" name="myCollection[0].last_name" value="..." />

<input type="hidden" name="myCollection[1].first_name" value="..." />
<input type="hidden" name="myCollection[1].last_name" value="..." />

and so on...

the part of adding the fields to a table with jQuery is pure client
side javascript so it is independent of using S2 or any other web
framework, just remember to add a hidden input field in the client
side table to preserve the data you will submit at once later.

2010/1/6 sharath karnati <karnatis@(protected)>:
> Dear All,
>
>   I'm having following requirement and can you please let me know how to do this using struts2.
>
>   Say EmployeeAction having EmpBean (getter & setter)
>
>   EmpBean:
>
>      private long emp_id;
>      private String first_name;
>      private String last_name;
>      private String class_name;
>
>
> In user interface(UI), I have 2 text fields for entering first_name and last_name.. when user enters this information and selecting 'Add' button it will display one row in same page like below
>
>     First Name     Last Name
>      Mike              Rojer               Remove
>      Smith            Gates              Remove
>
>    After entering multiple entries user will submit the page.
>
>   I'm using jQuery, how to add multiple rows dynamically pressing 'Add' button and how to populate these beans in backend EmployeeAction...
>
>    Can anyone please let me know how to solve this problem using Struts2 + jQuery.
>
> Thanks for your help.
>
> Regards,
> Sharath.
>
>
>
>
>
>
>
>
>

Hi, people, how can i show a table into a jsp from the struts action?
Are there a simple method for doing that? I've tried with java
collections into the action and "property" tag into the jsp with no success.

thanks in advance

--
Sergio

can share how the struts2 work with display tag


sorry never use this also, how the display tag work with List when we
submit the grid

F




On Thu, Jan 7, 2010 at 7:00 AM, Chris Pratt <thechrispratt@(protected):
> We use DisplayTag (http://www.displaytag.org), it works pretty well.
>  (*Chris*)
>
> On Wed, Jan 6, 2010 at 3:28 PM, Sergio
> <killing-is-my-business@(protected):
>
>> Hi, people, how can i show a table into a jsp from the struts action? Are
>> there a simple method for doing that? I've tried with java collections into
>> the action and "property" tag into the jsp with no success.
>>
>> thanks in advance
>>
>> --
>> Sergio
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@(protected)
>> For additional commands, e-mail: user-help@(protected)
>>
>>
>

wah can share how the interceptor work with display tag

sorry if this is silly question, but honestly i still need the glue

usually i create a private xxx List, and will be passed to the list

how integrate the list $xxx with the display tag?

thx


On Thu, Jan 7, 2010 at 7:25 AM, Chris Pratt <thechrispratt@(protected):
> It's just a standard JSP Tag Library.  Because Struts 2 has the Request
> Wrapper, you can use standard JSTL EL to get the list from your action and
> pass it to the DisplayTag Table, from then on it's just using the
> capabilities of DisplayTag to put the data where you want it.  The one
> caveat is that we've had to set the requestURI attribute to make sure that
> the prev/next links go to the right place and I added the excludeParams
> parameter below to the params interceptor so that you don't get the ugly
> warnings from struts.
>
>        <interceptor-ref name="params">
>          <param name="excludeParams">d-\d*-[a-z]</param>
>        </interceptor-ref>
>
> (*Chris*)
>
> On Wed, Jan 6, 2010 at 4:12 PM, Frans Thamura <frans@(protected):
>
>> can share how the struts2 work with display tag
>>
>>
>> sorry never use this also, how the display tag work with List when we
>> submit the grid
>>
>> F
>>
>>
>>
>>
>> On Thu, Jan 7, 2010 at 7:00 AM, Chris Pratt <thechrispratt@(protected)>
>> wrote:
>> > We use DisplayTag (http://www.displaytag.org), it works pretty well.
>> >  (*Chris*)
>> >
>> > On Wed, Jan 6, 2010 at 3:28 PM, Sergio
>> > <killing-is-my-business@(protected):
>> >
>> >> Hi, people, how can i show a table into a jsp from the struts action?
>> Are
>> >> there a simple method for doing that? I've tried with java collections
>> into
>> >> the action and "property" tag into the jsp with no success.
>> >>
>> >> thanks in advance
>> >>
>> >> --
>> >> Sergio
>> >>
>> >>
>> >> ---------------------------------------------------------------------
>> >> To unsubscribe, e-mail: user-unsubscribe@(protected)
>> >> For additional commands, e-mail: user-help@(protected)
>> >>
>> >>
>> >
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@(protected)
>> For additional commands, e-mail: user-help@(protected)
>>
>>
>