我想显示一个数据表，一旦选择了一个条目，它的内容应该显示在一个单独的对话框中。我的代码是这样的。
<h:form id="form">
<p:growl id="msgs" showDetail="true" />
<p:dataTable id="PMDatas" var="pMData" rowIndexVar="rowIndex" value="#
{managedBean.dataModel}" paginator="true" rows="100"
selection="#{managedBean.selectedRecord}"
selectionMode="single">
<p:ajax event="rowSelect" listener="#{managedBean.onRowSelect}"
update=":form:display :form:msgs" oncomplete="moreviewDialog.show()"
/>
<p:ajax event="rowUnselect" listener="#{managedBean.onRowUnselect}"
update=":form:msgs"/>
<p:column headerText="#">
#{rowIndex+1}
</p:column>
<p:column headerText="Cell Name">
<h:outputText value="#{pMData.cellid}" />
</p:column>
</p:dataTable>
<p:dialog header="History Data" widgetVar="moreviewDialog" resizable="false"
id="moreviewDlg"
showEffect="fade" hideEffect="explode" modal="true">
<h:panelGrid id="display" columns="2" cellpadding="4" style="margin:0 auto;">
<h:outputText value="CellId:" />
<h:outputText value="#{managedBean.selectedRecord.cellid}" style="font-
weight:bold"/>
</h:panelGrid>
</p:dialog>
</h:form>
我的 pMData 类如下所示。
public class PMData implements Serializable{
public PMData(String cell) {
cellid=cell;
}
private String cellid;
public void setCellid(String cellid){
this.cellid=cellid;
}
public String getCellid(){
return cellid;
}
}
PMDataModel 类是这样的。
public class PMDataModel extends ListDataModel<PMData> implements SelectableDataModel<PMData> ,Serializable{
/**
* Creates a new instance of PMDataModel
*/
public PMDataModel(){
}
@Override
public Object getRowKey(PMData object) {
return object.getCellid();
}
@Override
public PMData getRowData(String rowKey) {
List<PMData> data = (List<PMData>) getWrappedData();
for(PMData entry: data) {
if(entry.getCellid().equals(rowKey))
return entry;
}
return null;
}
public PMDataModel(List<PMData> data) {
super(data);
}
}
当我执行此选定的条目时，会显示在 Facesmessages 中，但不会出现在对话框中。
我的 mangedbean 类 id 如下所示。
private PMDataModel dataModel;
private PMData selectedRecord;
public void setSelectedRecord(PMData selectedRecord){
this.selectedRecord=selectedRecord;
}
public PMData getSelectedRecord(){
return selectedRecord;
}
public managedBean() {
dataAll= new ArrayList<PMData>();
this.getFiles(dataAll);
dataModel = new PMDataModel(dataAll);
}
public ArrayList<PMData> getDataAll(){
return dataAll;
}
public void onRowSelect(SelectEvent event) {
System.out.println("inside onRow select Method");
FacesMessage msg = new FacesMessage("Row Selected", ((PMData)event.getObject()).getCellid());
FacesContext.getCurrentInstance().addMessage(null, msg);
}
public void onRowUnselect(UnselectEvent event) {
FacesMessage msg = new FacesMessage("Row Unselected",((PMData) event.getObject()).getCellid());
FacesContext.getCurrentInstance().addMessage(null, msg);
}
public PMDataModel getDataModel() {
return dataModel;
}