Something

public class PriceSheetPanel2 extends Panel {
	public PriceSheetPanel2(String id) {
		super(id);

		String filename = "/tmp/uploads/sheet.csv";

        PriceSheetManager psheet = new CSVPriceSheetManager(filename);
        int cols = psheet.getRandomRow().size();
        List columns = new ArrayList();

		for( int i = 0 ; i < cols ; i++ ){
			String str = Integer.valueOf(i).toString();
			columns.add(new PropertyColumn(new Model("Column "+ str),str));
		}

		add(new PriceSheetForm("sheetform",cols));
        add(new AjaxFallbackDefaultDataTable("table", columns, new MySortableProvider(psheet.getAll()), 10));
	}

	private static final long serialVersionUID = 1L;

    public class MySortableProvider extends SortableDataProvider {
		private static final long serialVersionUID = 1L;
		private List psheet;

    	public MySortableProvider(List list) {
    		this.psheet = list;
    		setSort("0",true);
    	}

		public Iterator iterator(int from, int to) {
			SortParam sp = getSort();
			return psheet.subList(from,psheet.size()).iterator();
		}

		public IModel model(Object object) {
			return new Model((ArrayList) object);
		}

		public int size() {
			return psheet.size();
		}
    }

}