一个时间循环

Question

                                          <aspropDownList ID="ss" runat="server">
                                                <asp:ListItem>7:00</asp:ListItem>
                                                <asp:ListItem>7:30</asp:ListItem>
                                                <asp:ListItem>8:00</asp:ListItem>
                                                <asp:ListItem>8:30</asp:ListItem>
                                                <asp:ListItem>9:00</asp:ListItem>
                                                <asp:ListItem>9:30</asp:ListItem>
                                                <asp:ListItem>10:00</asp:ListItem>
                                                <asp:ListItem>10:30</asp:ListItem>
                                                <asp:ListItem>11:00</asp:ListItem>
                                                <asp:ListItem>11:30</asp:ListItem>
                                                <asp:ListItem>12:00</asp:ListItem>
                                                <asp:ListItem>12:30</asp:ListItem>
                                                <asp:ListItem>13:00</asp:ListItem>
                                                <asp:ListItem>13:30</asp:ListItem>
                                                <asp:ListItem>14:00</asp:ListItem>
                                                <asp:ListItem>14:30</asp:ListItem>
                                                <asp:ListItem>15:00</asp:ListItem>
                                                <asp:ListItem>15:30</asp:ListItem>
                                                <asp:ListItem>16:00</asp:ListItem>
                                                <asp:ListItem>16:30</asp:ListItem>
                                                <asp:ListItem>17:00</asp:ListItem>
                                                <asp:ListItem>17:30</asp:ListItem>
                                                <asp:ListItem>18:00</asp:ListItem>
                                                <asp:ListItem>18:30</asp:ListItem>
                                                <asp:ListItem>19:00</asp:ListItem>
                                                <asp:ListItem>19:30</asp:ListItem>
                                                <asp:ListItem>20:00</asp:ListItem>
                                                <asp:ListItem>20:30</asp:ListItem>
                                                <asp:ListItem>21:00</asp:ListItem>
                                                <asp:ListItem>21:30</asp:ListItem>
                                                <asp:ListItem>22:00</asp:ListItem>
                                                <asp:ListItem>22:30</asp:ListItem>
                                                <asp:ListItem>23:00</asp:ListItem>
                                                <asp:ListItem>23:30</asp:ListItem>
                                           
                                              </aspropDownList>从7：00 到 23：30 要怎么做循环？

Answer 1

比如：<aspropDownList ID="ss" runat="server">
     </aspropDownList>要每第一个加30分钟！像上面的结果！！

Answer 2

List<string> list=new List<string>()
for(int i=7;i<=23;i++)
{
   list.Add(i+":00");
   list.Add(i+":30");
}
return list;

Answer 3

            for (int i = 7; i <= 12; i++)
            {
                ListItem item1 = new ListItem { Text = i + ":00" };
                ListItem item2 = new ListItem { Text = i + ":30" };
                drp_Time.Items.Add(item1);
                drp_Time.Items.Add(item2);
            }

Answer 4

用循环生成时间List.
然后，将List 绑定上去。

Answer 5

List<string> list=new List<string>()
for(int i=7;i<=23;i++)
{
   list.Add(i+":00");
   list.Add(i+":30");
}
return list; 
这样是可以的