private UAReturn changeDatagridCell(string colName, string celdata, int rowindex, ServerDataSource dataSource)
{
//return (dispatcher.EvaluateToObject(RCommandStrings.ChangeDatagridCell(colName, celdata, rowindex, dataSource), false) as string);
return (dispatcher.EvaluateToUAReturn(RCommandStrings.ChangeDatagridCell(colName, celdata, rowindex, dataSource)));
}