Question

这是我的时间表代码的一部分

两个问题：

如何防止必须遍历时间，然后检查房间检查以检查它是否存在于给定的时间段内。有没有办法只说“这个时候，这个列表中是否有匹配，它的ID是什么”
无论如何，我可以将外部td设置为类bgred，而不是跨度。（请注意，时间段中可能有多个预订，因此将td从foreach循环中删除。）

<tr>
    <th></th>

        @for (int i = 9; i <= 17; i++)
        {
        <th>@i:00</th>
        }
</tr>

    @foreach (var RoomNo in ViewBag.Rooms)      
    {

        <tr>

            <th>@RoomNo</th>

           @for (int i = 9; i <= 17; i++)
           {
               <td>
               @foreach (var roombooking in ViewBag.RoomBookings)
               {
                   DateTime DateCheckStart = DateTime.Parse(ViewBag.Date.ToShortDateString() + " " + i.ToString() + ":00");
                   DateTime DateCheckEnd = DateTime.Parse(ViewBag.Date.ToShortDateString() + " " + i.ToString() + ":59");
                   if (DateCheckStart < roombooking.EndDateTime && DateCheckEnd > roombooking.StartDateTime && roombooking.RoomNo == RoomNo)
                   {
                     <span class="bgred"> @roombooking.RentalNo</span>
                   }
               }
               </td>
           }
        </tr>

     }

Answer 1

这样的事情

@foreach (var roombooking in ViewBag.RoomBookings.Where( /* in range */ ))

这样你就可以删除你的第一个for循环

Answer 2

您应该在控制器中过滤数据，只将相关数据传递给视图。

您可以将linq用于控制器中的对象，甚至可以更好地过滤数据库中的数据。

Answer 3

尝试这样的事情。

 <table>
<tr>
    <th></th>

        @for (int i = 9; i <= 17; i++)
        {
        <th>@i:00</th>
        }
</tr>

@{ List<MyLibrary.MyRoomOccupancy> RoomBookingsTemp = ViewBag.RoomBookings;}

@foreach (var RoomNo in ViewBag.Rooms)
{
    <tr>
        <th>@RoomNo</th>

       @for (int i = 9; i <= 17; i++)
       {             
           DateTime DateCheckStart = DateTime.Parse(ViewBag.Date.ToShortDateString() + " " + i.ToString() + ":00");
           DateTime DateCheckEnd = DateTime.Parse(ViewBag.Date.ToShortDateString() + " " + i.ToString() + ":59");

           var sublist = (from RoomOcc in RoomBookingsTemp where DateCheckStart < RoomOcc.EndDateTime && DateCheckEnd > RoomOcc.StartDateTime && RoomOcc.RoomNo == RoomNo select RoomOcc);


           if (sublist.Count() > 0)
           {
              @Html.Raw("<td class= \"bgred\">");

            }
           else {
               Html.Raw("<td>");
           }

           foreach (var roombooking in sublist)
           {
               if (DateCheckStart < roombooking.EndDateTime && DateCheckEnd > roombooking.StartDateTime && roombooking.RoomNo == RoomNo)
               {
                  @roombooking.RentalNo
               }
           }
           @Html.Raw("</td>");

       }
    </tr>

}


</table>

这是做什么的，它只能通过他

C＃：将（每个）循环组合到有效的代码中

3 个答案: