maybe a bug in scrollableDataTable
First,in the scrollableDataTable online demo,click the table header,the row selected performance will not work,so click "Show Current Selection" buttom will not show the current selection.
But now,i have another problem.
I use scrollableDataTable,when selection changes the data of the first selection will be show in the page.
the strange thing is that i must scroll the scroll bar,then take selection,it will work fine.If not,the needed part will not be rerended,and java.lang.ArrayIndexOutOfBoundsException will be threw.
page code:
<h:form>
<h:panelGrid>
<h:outputText value="Files" />
<rich:scrollableDataTable
height="200px" width="800px" id="fileTable" rows="40"
value="#{fileUpload.fileList}" var="files"
binding="#{fileUpload.table}" selection="#{fileUpload.selection}">
......
<rich:column width="600">
<f:facet name="header"><h:outputText value="summary"/></f:facet>
<h:outputText value="#{files.summary}" />
</rich:column>
<a4j:support event="onselectionchange" reRender="newSum"/>
</rich:scrollableDataTable>
</h:panelGrid>
<h:panelGrid id="newSum">
<h:outputText value="#{fileUpload.firstFile.name}"/>
<h:inputTextarea cols="60" rows="5" value="#{fileUpload.firstFile.summary}"/>
<a4j:commandButton value="changeSummary" action="#{fileUpload.changeSummary}" />
<a4j:outputPanel ajaxRendered="true">
<rich:messages style="color: #FF0000; size: 12px"/>
</a4j:outputPanel>
</h:panelGrid>
</h:form>
back bean:
private SimpleSelection selection=new SimpleSelection();
private UIScrollableDataTable table;
private ArrayList<File> selectedFiles=new ArrayList<File>();
private File firstFile=new File();
......
public File getFirstFile() {
this.takeSelection();
if(selectedFiles.isEmpty()){
firstFile.setName("");
firstFile.setSummary("");
return firstFile;
}
firstFile=selectedFiles.get(0);
return firstFile;
}
public String takeSelection() {
getSelectedFiles().clear();
if (getSelection().isSelectAll()){
getSelectedFiles().addAll(fileList);
}
else{
Iterator<Object> iterator = getSelection().getKeys();
while (iterator.hasNext()){
Object key = iterator.next();
table.setRowKey(key);
if (table.isRowAvailable()) {
getSelectedFiles().add((File)table.getRowData());
}
}
}
return null;
}
