public DataTable ConvertToDataTable<T>(IList<T> data)        {            PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(typeof(T));            DataTable table = new DataTable();            foreach (PropertyDescriptor prop in properties)                table.Columns.Add(prop.Name, Nullable.GetUnderlyingType(prop.PropertyType) ?? prop.PropertyType);            foreach (T item in data)            {                DataRow row = table.NewRow();                foreach (PropertyDescriptor prop in properties)                    row[prop.Name] = prop.GetValue(item) ?? DBNull.Value;                table.Rows.Add(row);            }            return table;        }