While perform Action on Selected Rows in trinidad Tables it gives Nullpoint

I created one table with Multiple row selection on JSF page with one Button Update.on_click of that button i am getting below Exception.
For reference I am posting code here.
Table::
<af:form>
<af:panelStretchLayout....
<tr:table binding="#{mybean.table}" rowselection="multiple" ...>
</tr:table>
<tr:commandButton text="Update" actionListener="#{mybean.performUpdate}"/>
Mybean.performUpdate::
public void performUpdate(ActionEvent actionEvent) {
List list=new ArrayList();
UIXTable table = getTable();
Iterator selection = table.getSelectedRowKeys().iterator();
Object oldKey = table.getRowKey();
while(selection.hasNext())
 Object rowKey = selection.next();
 table.setRowKey(rowKey);
 MyRowImpl row = (MyRowImpl) table.getRowData();
 //custom method exposed on an implementation of Row interface.
 row.markForDeletion();
Exception::
java.lang.NullPointerException
 at org.apache.myfaces.trinidad.model.RowKeySet.add(RowKeySet.java:129)
 at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.table.TableSelectManyRenderer._setDeltas(TableSelectManyRenderer.java:161)
 at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.table.TableSelectManyRenderer.decode(TableSelectManyRenderer.java:113)
 at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.TableRenderer.decodeSelection(TableRenderer.java:138)
 at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.TableRenderer.decode(TableRenderer.java:102)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.__rendererDecode(UIXComponentBase.java:1089)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.decode(UIXComponentBase.java:714)
 at org.apache.myfaces.trinidad.component.UIXTable.decode(UIXTable.java:136)
 at org.apache.myfaces.trinidad.component.UIXCollection.processDecodes(UIXCollection.java:193)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:970)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:956)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:812)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:970)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:956)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:812)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:970)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:956)
 at org.apache.myfaces.trinidad.component.UIXForm.processDecodes(UIXForm.java:75)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:970)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:956)
 at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:812)
 at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1015)
 at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:504)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl$ApplyRequestValuesCallback.invokeContextCallback(LifecycleImpl.java:1113)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:293)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:175)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
 at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
 at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
 at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292)
 at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
 at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:181)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
 at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:85)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:279)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._invokeDoFilter(TrinidadFilterImpl.java:239)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:196)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:139)
 at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
 at oracle.security.jps.wls.JpsWlsFilter$1.run(JpsWlsFilter.java:85)
 at java.security.AccessController.doPrivileged(Native Method)
 at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:257)
 at oracle.security.jps.wls.JpsWlsSubjectResolver.runJaasMode(JpsWlsSubjectResolver.java:250)
 at oracle.security.jps.wls.JpsWlsFilter.doFilter(JpsWlsFilter.java:100)
 at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:65)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
 at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
 at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3496)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
 at weblogic.security.service.SecurityManager.runAs(Unknown Source)
 at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2180)
 at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2086)
 at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1406)
 at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
 at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)

Hi Timo,
Thanks for reply .
I am using Jdev11g.
I also tried Debug and what i observer is
1)If i drop trinad table it gives above error before catching debug point in action.
2)If i use <af:table ... i am able to catch debug point but it give null value on step UIXTable table = getTable() in above code.
Please suggest me how to use trinidad table for multiple row selection functionality bcz it satisfy my requirement.

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Edited by: 900997 on Mar 7, 2012 3:56 AM
Edited by: 900997 on Mar 7, 2012 4:01 AM
Edited by: 900997 on Mar 7, 2012 4:03 AM

JDev 11.1.1.5.3 sounds like you are using oracle apps as this not a normal jdev version.
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I will have two tabes and if the user selects data from one table it will be moved to target table.I'm able to populate the target table with the value but I'm not able to delete the selected row from the source table.
Any help in this regard would be highlt appreciated.
Thankx in advance.
Regds,
Srinivasan.

Hi
Follow the following steps -
1. Create two buttons.One for 'delete row' and another one for 'insert row'.
2. Assign the proper system action as per the name.
2. Change the name of both buttons as common name.
3. To trigger the actions simultaneously add a star before the action.( For Example : *select)
4. Change the visibility of any one of the button as 'false'. (so it will not get displayed)
5. Now, if u click the visible button both actions will be triggered simultaneously.
Regards
Sandeep

How to data from selected row of a TABLE

Hi ,
I have a table displaying some PO order details. In the last column , I have a field with element Link to Action . My requirement is , that when I click on the link to action column of specific row , I want to get the data present( specifically the the data present on the first column which is PO number) i that specific row.
How can i get this data?
Regards
PG

Hi PG,
If you want to get Selected row data, you can use get_selected_elements
Try this example code.. this gives you selected records into one table..
DATA lo_nd_et_postab_1 TYPE REF TO if_wd_context_node.
DATA lo_el_et_postab_1 TYPE REF TO if_wd_context_element.
DATA ls_et_postab_1 TYPE wd_this->Element_et_postab_1.
DATA lt_et_postab_1 TYPE wd_this->Elements_et_postab_1.
DATA: wa_temp TYPE REF TO if_wd_context_element,
 lt_temp TYPE wdr_context_element_set.
navigate from <CONTEXT> to <ET_POSTAB_1> via lead selection
lo_nd_et_postab_1 = wd_context->path_get_node( path = `ZSHP_EXTENDED_DUE_LI.CHANGING_3.ET_POSTAB_1` ).
CALL METHOD lo_nd_et_postab_1->get_selected_elements
 RECEIVING
 set = lt_temp.
LOOP AT lt_temp INTO wa_temp.
 CALL METHOD wa_temp->get_static_attributes
 IMPORTING
 static_attributes = ls_et_postab_1.
 append ls_et_postab_1 to lt_et_postab_1.
 CLEAR ls_et_postab_1.
ENDLOOP.
lo_nd_et_postab_1->bind_table( new_items = lt_et_postab_1 ).
NOW LT_ET_POSTAB_1 Contains selected records in table.
Hope it helps...
Cheers,
Kris.

How to populate the selected row details of table in the next view?

hi,
Im having a table, on selecting a particular row of a table by clicking on a radio button. i need that row details to be passed on(populated) to the next view when i navigate to that view by clicking on a button?
Thanks & Regards,
Suresh

Hi Suresh,
Your scenario is simple. Just follow the ex as shown below
(Assuming you want default selection view provided by table itself.)
1>Create 2 views (Ex:A and B)
2>Create a Context with a node and attributes(For Ex:Person as node and Fname and Last Name as attributes
2>In A view create a table with F name and L Name(map to context as well) and a action button to navigate to B view when you selected a particualr row o.k
3>In B view, create a TextView with mapping to LastName(or all the data if you want from input selection) from the context
If you want you can add back action button from B view to A view for easy navigation.
4>Execute the application and select any row in the table appeared, press next action button,you can see that the selected row details will be shown in second(B) view.
If you do the above example, I think you can easily find the solution for navigation issue.. try it out.
In case if you are not able to ...let me know..I have that example.
Hope that helps
Regards
Praveen

While perform Action on Selected Rows in trinidad Tables it gives Nullpoint

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