private UAReturn addNewCol(string colName, string dgridval, int rowindex, ServerDataSource dataSource)
{
//return (dispatcher.EvaluateToObject(RCommandStrings.AddNewDatagridCol(colName, dgridval, rowindex, dataSource), false) as string);
return (dispatcher.EvaluateToUAReturn(RCommandStrings.AddNewDatagridCol(colName, dgridval, rowindex, dataSource)));
}