Axapta - Add dimension based filter to a query

When we try to add filter based on StrFmt  like this; dimension[2] = "0001" it gives error because of brackets. I found the solution from a  forum page :

QueryBuildDataSource    qbds = query.addDataSource(tablenum(EmplTable));
...
 qbds.addRange(fieldid2Ext(fieldnum(EmplTable, Dimension),1)).value("600742");