public List <TRecordType> Get_all_budget_items <TRecordType>(BudgetItemListData budget_item_list_data)
where TRecordType : ICSVRecord, new()
{
int first_row_number = _spreadsheet_io
.Find_row_number_of_last_row_containing_cell(budget_item_list_data.Sheet_name, budget_item_list_data.Start_divider) + 1;
int last_row_number = _spreadsheet_io
.Find_row_number_of_last_row_containing_cell(budget_item_list_data.Sheet_name, budget_item_list_data.End_divider) - 1;
return(_spreadsheet_io.Get_rows_as_records <TRecordType>(
budget_item_list_data.Sheet_name,
first_row_number,
last_row_number,
budget_item_list_data.First_column_number,
budget_item_list_data.Last_column_number));
}