How to pass parameters from Behaviour class to JSP to populate a table

vsoman1984

Hi All,

I have a JSP page which contains a drop down box and a link.Depending on the selection of the dropdown box option and click on the link, my Java behaviour obtains a property named "projectSummary".There are many project summaries and as a result the type of the property is

"private ProjectSummary[ ] ptSummary;".

The "projectSummary" has 2 values projectSummary.getID and projectSummary.getDescription.

Also on the click of the link, i have set the nextcomponent to be displayed as a page (say page B )which will display the list of ID's and their corresponding descriptions.

This is where i am unable to find a break through.

Consider this below given code. I had carried out the same functionality in another CMS using JSF earlier.

<h:dataTable id="dt2" value="#{MyBehaviourClass.ptSummary1}" var="item1" bgcolor="#F1F1F1" border="10" cellpadding="5" cellspacing="3" first="0" rows="100" width="50%" dir="LTR" frame="hsides" rules="all" summary="This is a JSF code to create dataTable." >
<f:facet name="header">
   <h:outputText value="Project Details - In Evaluation" />
</f:facet> 
<h:column>
        <f:facet name="header">
        <h:outputText value="Project ID" />
        </f:facet> 
             <a:actionLink id="tableNavigate2" value="#{item1.ID}" action="dialog:freewayTableNavigate" actionListener = "#{MyBehaviourClass.linkDescription}" showLink="true" > 
   <f:param name="paramid" value="#{item1.ID}" />
   <f:param name="paramdesc" value="#{item1.description}" />
    </a:actionLink>
</h:column>
</h:dataTable>

Here in the h:dataTable i am accessing the property from the class, providing it a variable "item1" and further displaying the ID's (as a link) and Description's on the next page (page B).

My question is ,how can i use dmf tags similarly to achieve my aim of displaying the Behaviour class created values on to my JSP by passing them as parameters?

Hoping for your valued support.

Thanks and Regards

Vishnu

Find more posts tagged with

Comments

udeleng

value="<%=MyBehaviourClass.getSummary1()%>"value="<%=MyBehaviourClass.ptSummary1%>"

vsoman1984

Hi udeleng,

Thanks for your support.Could u suggest a suitable tag like datagrid or datatable wherin i can use the value option.I have not yet been able to find the "dmf " quivalent of h:datatable which is efficent enough to arrage the array of values coming from my bean.I tried displaying the value using dmf: text tag by using.

<td colspan="2"><dmf:text name ='test' value ='<%=MyBehaviourClass.ptSummary%>'var 'item' nlsid ='MSG_PROJ_DESCRIPTION' />

But as expected it only recognizes String as its output value and cannot handle tha arraytype of ptSummary.

Looking forward for your reply.

Thanks & Regards

Vishnu

dnvhariprasad

Datagrid in WDK is very flexible that you can have whatever controls inside it.

Use dmf:datagrid tag for datagrid layout in your component.

under dmf:datagrid, you can have any other controls.

Search for WDK Datagrid in the forums and you will find a good article on basics of WDK datagrid.

If you need any sample program on using datagrid, let me know..

udeleng

To create a table you use the Datagrid control. You can populate values in there using either a DQL query or a WDK Resultset.

Take a look at the JSP of other components that have what you're looking for, decompiling their classes if necessary. Additional information can be found in the WDK Development Guide.

vsoman1984

Hi Hari,Hi udeleng

Thank u agin for ur valuable inputs.I will surely try out ur suggestions and post my progress.

@Hari - It will be really great to have a start by looking at few examples.Looking forward for ur examples.

Thanks a ton

Regards

Vishnu S

vsoman1984

Hi Friends,

I went through an article on datgrid from the Pdf "Programming WDK Datagrid".But the examples were pertaining to query returned resultsets and i was unable to correlate to my scenario wherein the property ptSummary returns values from array like ptSummary[i] .getDescription and ptSummary[i] .getID.

So i used a simple for loop in my JSP as

<td colspan="2">
<TABLE BORDER=2>
<%
    for ( int i = 0; i < MyBehaviourClass.ptSummary.length; i++ ) {
        %>
        <TR>
        <TD><%=MyBehaviourClass.ptSummary[i].getID() %></TD>
         <TD><%=MyBehaviourClass.ptSummary[i].getDescription() %></TD>
        </TR>
        <%
    }
%>
</TABLE></td>

Now this serves my purpose of displaying the values of Descriptions and ID's inside my JSP.

But i wiould like to know the steps to follow if i were to use a Datagrid.

Is it mandatory to have DataGrid objects defined inside my Java class? How can i pass my string values into a control like setScrollableResultSet

Datagrid datagrid = (Datagrid)getControl("__SELECTED_PRJTSUMMARIES_DATAGRID_CONTROL_NAME", Datagrid.class);datagrid.getDataProvider().setDfSession(getDfSession());
datagrid.getDataProvider().setScrollableResultSet(// how can i pass my ptSummary[i].getID or ptSummary[i].getDescription )

Thank You

udeleng

Information regarding using resultsets with datagrids can be found on page 208 (Chapter 4 - Configuring and Customizing Data Access) of the WDK 6.5 Development Guide.