What happens if in your getJsfDataTable function you call new
HtmlDataTable() each time?
do you still get this NPE?
regards,
Martin
On 8/18/05, Kołoszko Paweł <[EMAIL PROTECTED]> wrote:
> One more thing. When binding="#{listRodzajePism.jsfDataTable}" is removed
> from x:datatable tag, everyhing works just fine.
>
> PK
>
> -----Original Message-----
> From: Kołoszko Paweł
> Sent: Thursday, August 18, 2005 11:20 AM
> To: [email protected]
> Subject: FacesException: Could not get property rows of component...
>
> MyFaces 1.0.9
>
> I have a following problem:
>
> I have page.jsp with datatable and a button:
>
> <x:dataTable id="listarodzajepism" value="#{listRodzajePism.rodzajePism}"
> var="rodzajPisma" border="0"
> styleClass="standardTable"
> headerClass="standardTable_SortHeader"
> rowClasses="standardTable_Row1,standardTable_Row2"
> footerClass="standardTable_Footer"
> sortColumn="#{listRodzajePism.sort}"
> sortAscending="#{listRodzajePism.ascending}"
> preserveDataModel="true"
> preserveSort="true"
> rows="24"
> binding="#{listRodzajePism.jsfDataTable}">
>
> ... column, column, column ...
> </x:dataTable>
> <h:commandButton id="cb" value="NewPage" action="newpage"/>
>
> Action "newpage" of commandbutton opens page2.jsp with only one button:
>
> <h:commandButton id="button"
> value="Cancel"
> action="back"
> immediate="true"/>
>
> Action "back" goes back to page.jsp. And here the problem occurs becuase I
> receive an error:
>
> javax.faces.FacesException: Could not get property rows of component
> rodzajepismview:listarodzajepism Caused by: java.lang.NullPointerException
> at
> org.apache.myfaces.component.html.ext.HtmlDataTable.getRows(HtmlDataTable.ja
> va:547)
>
> When I open page.jsp everything is OK, but action page.jsp -> page2.jsp ->
> page.jsp Cause an error.
>
> In my backing bean I have:
>
> private HtmlDataTable jsfDataTable;
>
> public HtmlDataTable getJsfDataTable() {
> return jsfDataTable;
> }
>
> public void setJsfDataTable(HtmlDataTable jsfDataTable) {
> this.jsfDataTable = jsfDataTable;
> }
>
> What can cause this problem? Is it a bug in MyFaces or my fault somewher in
> my code?
>
> PK
>
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