rich:dataTable accessing data from backing bean

[zelenka]

Hi,

on page I use rich:datatable and some columns use filterBy feature. In backing bean I would like to sum one column when user changes value. Problem is that my code only walks through displayed (filtered) rows. How to access all rows?

Thanks

<h:outputText id="sumks" value="#{MyBean.sumData}"/></td>

<rich:dataTable ..... binding="#{MyBean.htmlDataTable}" id="table">

     ...

     <rich:column>
          <h:inputText value="..." id="ks">
               <a4j:support event="onchange" reRender="sumks"/>
          </h:inputText>
     </rich:column>

public Integer getSumData() {
        Integer sum= 0;
        for (int i = 0; i < htmlDataTable.getRowCount(); i++) {
            htmlDataTable.setRowIndex(i);
            UIComponent ks = htmlDataTable.findComponent("ks");
            sum= sum+ (Integer) ((HtmlInputText) ks).getValue();
        }
        return sum;
    }

[fdegrigny]

Why you don't use the dataModel (or data List) to perform the sum ?

[zelenka]

Beacuse I want to sum UI data before saving to data model

[fdegrigny]

But I think that (in almost every case) UI data are only visible data

[zelenka]

But my table contains inputBox so user can change values.

[fdegrigny]

Ok, so modified values are updated to the DataModel during the UpdateValues phase.

Are you trying to compute the sum on the client side, with javascript before you send the request ?

[zelenka]

My problem is that I want to compute the sum of all rows not only visible (filtered) rows.

[nbelaevski]

Pavel,

You can try this:

1) Let components update the model

2) Walk over the model in action method and sum values from there