How to get ui.rowData for the event of selectEnd

[lsl]

It works fine when I use

rowDblClick: function (event, ui) {            
                ui.rowData[key];                                       
}

However, if I change to use the selectEnd,
selectEnd : function (event, ui) {                           
}

I can only get the change by "ui.selection._areas[0].firstR" and ui.rowData don't work.
How can I do about this?

[paramvir]

rowData can be calculated from rowIndx as

grid.getRowData( {rowIndx: rowIndx })