you can use scrollable datatable for getting vertical scroll bar.

here is the sample code for scrollable data table

<

rich:scrollableDataTable value="#{bean.list}"

height="200px" id="columns" var="result" width="200px">

if you want vertical scroll bar in extendedDataTable just use height attribute.here is the sample code

<

rich:extendedDataTable value=

"#{bean.list}"

var="result" height="400px" width="100%"

binding="#{bean.Table}"

>

Try removing the rows attribute from the rich:extendedDataTable Tag

here is the working code, which will give you vertical scroll bar

Xhtml code

<rich:extendedDataTable value="#{test.dynamicList}" width="100px"
  height="350px" id="dynamicTable" enableContextMenu="false"
  var="fileData" reRender="dynamicScroller"
  rowClasses="datatable-odd,datatable-even"
  noDataLabel="No records Founf">
  <rich:column>
   <f:facet name="header">
    <h:outputLabel value="test header" />
   </f:facet>
   <h:outputText value="#{fileData}" />
  </rich:column>
</rich:extendedDataTable>

Managed bean code:

import java.util.ArrayList;
import java.util.List;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;

@ManagedBean(name = "test")
@ViewScoped
public class TestManagedBean {

private List<String> dynamicList=new ArrayList<String>();
public TestManagedBean() {
  for(int i=1;i<100;i++){
   dynamicList.add(" proeprty "+i);
  }
}

/**
  * @return the dynamicList
  */
public List<String> getDynamicList() {
  return dynamicList;
}

/**
  * @param dynamicList the dynamicList to set
  */
public void setDynamicList(List<String> dynamicList) {
  this.dynamicList = dynamicList;
}

}

can you please attach the screen shot of your screen

in b/w you can adjust the height attribute of the table to see the last row

Is there any other solution to this? Applying a padding to the .rich-extdt-cell is not so desirable because it would apply to all cells, not just the last row.