How to convince the SmartGWT ListGrid to automatically fetch from the server only the data it displays

Since I was looking all over the net how to do this and I only found pieces of information, here is an example: [java] public class OperationsGrid extends ListGrid{ OperationsGrid(){ super(); TreeGridField accNoField = new TreeGridField(“accountNo”, 150); TreeGridField commentField = new TreeGridField(“comment”, 150); setFields(accNoField,commentField); setHeight100(); setWidth100(); setAutoFetchData(true); setAlternateRecordStyles(true); setDataSource(OperationsDS.getInstance()); setShowFilterEditor(true); } } [/java] [java] public…