simpleDataGridBean的代码：

private Quote[] stockData = new Quote[] { 
        new Quote("3m Co.", 71.72), 
        new Quote("Alcoa Inc", 29.01), 
        new Quote("Altria Group Inc.", 83.81), 
        new Quote("American Express Company", 52.55),
         ...... 
    }; 

@ManagedProperty private int[] selections; 
@ManagedProperty private String responseText; 

public Object button_action() { 
  if(selections != null){ 
    StringBuffer buffer = new StringBuffer(); 
    buffer.append("您选中了第"); 
    for(int i : selections){ 
      buffer.append(i + ","); 
    } 
    responseText = buffer.toString() + "行！"; }
  else{ 
    responseText = "没有选中任何行！"; 
  } 
  return null; 
}

SimpleDataGrid.jsp代码：

<w:form> 
  <w:simpleDataGrid id="mygrid" value="#{simpleDataGridBean.stockData}" var="data" 
          selections="#{simpleDataGridBean.selections}" showSelectionColumn="true" 
          selectionColumnIndex="4"> 
    <w:idColumn id="company" header="Company" width="260" value="#{data.company}"> </w:idColumn> 
    <w:outputColumn id="price" header="Price" width="100" align="center" sortable="true" value="#{data.price}"> </w:outputColumn> 
    <w:outputColumn id="change" header="Change" width="75" align="center" value="#{data.change}"> </w:outputColumn> 
    <w:outputColumn id="pct_change" header="% Last Updated" width="160" align="center" value="#{data.lastUpdated}"> 
      <f:convertDateTime pattern="yyyy-MM-dd hh:mm:ss" /> 
    </w:outputColumn> 
  </w:simpleDataGrid> 
  <w:pagingLink for="mygrid" pageSize="5" theme="google"></w:pagingLink> 
  <w:button value="提交" action="#{simpleDataGridBean.button_action}" /> 
  <h:outputText value="#{simpleDataGridBean.responseText}" style="color:red;"></h:outputText> 
</w:form>