jQuery Grid Plugin - jqGrid

Hi,
Hopefully this is a quick one!

I have an editable grid using 'clientSide' (local) data and I now wish to iterate all the rows in javascript and process/package the data myself before sending it to the server via a jQuery.ajax call.

The problem is that, unexpectedly (for me at least), using the following code only retrieves the rows for the currently visible grid page! How can I get ALL the rows in the grid (i.e. I have four pages of 10 records each and this code only returns the first 10 when I'm on page 1)? They must be present in the client somewhere because I can page around and edit the rows and the data is persisted without calling the server!

        cacheCONF = [];
        var rows= $('#myGrid').getRowData();  //<–Need to get ALL rows here!!!
        var cacheRowID = 0;
        for (var row in rows) {
            if (rows[row].Action == 'Yes') {
                cacheCONF.push({ RowID: rowID, System: rows[row].System, Action: rows[row].Action, Account: '-', Required: '-'  });
                rowID++;
            }
        }

Thanks!