rich:datatable - how to get rows

[zelenka]

Hi,

I have rich:datatable and I use filterBy feature. How can I get data which are actually viewed?

Thanks

[ilya_shaikovsky]

you should implement data model properly. see modifiable model sample at richfaces-demo.

[zelenka]

"ilya_shaikovsky" wrote:
you should implement data model properly. see modifiable model sample at richfaces-demo.

Thanks, but I think don't understand it. Maybe it's too complicated for me. I have very simple data table:
<rich:dataTable id="table" value="#{MyBean.carList}" var="item" rows="25"> The only thing I need is when user clicks a button in the page to iterate actually viewed data from data table.

[ilya_shaikovsky]

check richfaces-demo all samples placed at dataTable menu item.

[johndoe123]

You don't need to write a whole custom DataModel.

Construct your Bean like this:

int currentCarListIndex = 0;
Car currentCar;

public Car getCurrentCar()
{
 return currentCar;
}

public void setCurrentCar(Car c)
{
 this.currentCar = car;
}

public void nextCar()
{
 //TODO: bounds check
 currentCar = carList.get(currentCarListIndex++);
}

Then construct your datatable like this:

<rich:dataTable
 id="datatable"
 rows="20"
 var="item" value="#{MyBean.carList}"
 >

 <rich:column>
 <f:facet name="header">Actions</f:facet>
 <a4j:commandLink id="editlink" >
 <h:graphicImage value="/img/edit.gif" style="border:0"/>
 <f:setPropertyActionListener value="#{item}" target="#{MyBean.currentCar}" />
 </a4j:commandLink>
 </rich:column>
 <rich:column> <!-- just some column for output -->
 <h:outputText value="#{item.engineDescription}
 </rich:column>
 </rich:datatable>
<a4j:commandLink id="NEXT" value="NEXT CAR" action="#{MyBean.nextCar()}" />
 <h:outputText value="#{MyBean.currentCar.engineDescription}" />

HTH

[zelenka]

"JohnDoe123" wrote:
You don't need to write a whole custom DataModel.

Construct your Bean like this:

Thanks, but I don't need one particular row. I need all rows viewed which may be filtered via filterBy feature.

[zelenka]

The solution is very simple. Just to use HtmlDataTable and iterate through rows.

for (int i = 0; i < htmlDataTable.getRowCount(); i++) {
htmlDataTable.setRowIndex(i);
Car c = (Car) htmlDataTable.getRowData();
....
}