jQuery Grid Plugin - jqGrid

colNames: [...]
    colModel: [
      {name: 'startdate', index: 'startdate',width:210,sorttype:"date", sortable: true, editable:true, date: true, formatter: "date" },
      {name: 'enddate', index: 'enddate',width:210,sorttype:"date", sortable: true,editable:true, date: true, formatter: "date" },
    ]

afterSubmitCell: function(response, id, name, val, iRow, iCol) { ....

if (!validateDate(enddate, startdate)) { //if (Date.parse(startdate) > Date.parse(enddate)) {
            $("#list2″).setRowData(id, {startdate: '' });
            return [false, 'startdate > enddate'];
          } else {
            return [true, ''];
          }
}

We are using the german grid.locale-de.js and we have written a javascript validation method to validate dates where the startdate is bigger than the enddate, in that case, we want to display an error message and clear the rowData startdate.

Using $("#list2″).setRowData(id, {enddate: '' }); via Firebug it works fine, but the code above does not clear the column and inserts wired dates in the column.

Did anybody have same problem and any ideas? I could imagine the problem could be the datefmt?

Thanks for your help.

kind Regards,

joah1