Question

我试图在MVC中创建一个小型预订系统。现在我已经创建了一个模型（BookingViewModel）一个控制器（BookingController）以及一个包含下拉列表和一个按钮的视图。

用户将完成多个步骤（视图）以完成预订。 BookingController的索引视图是第一步。

所以下一步是座位（用户可以指向他想要坐的座位）。在这里，我考虑创建另一个控制器，并进行索引视图。如何从第一个索引视图获取值到此步骤？

我知道我应该使用Httppost方法，但是现在我收到了错误：

具有密钥＆＃39; DepartureRoute＆＃39;的ViewData项目。属于＆＃39; System.String＆＃39;但必须是＆＃39; IEnumerable＆lt; SelectListItem＆gt;＆＃39;

因此，根据您在第一步中输入的值，我希望在下一步中使用这些值，以便搜索数据库。

BookingController

namespace BookingMvc.Controllers
{
public class BookingController : Controller
{
    // GET: Booking
    public ActionResult Index()
    {
        var vm = new BookingViewModel();

        var citiesList = new List<SelectListItem>
    {
        new SelectListItem { Value = "1", Text = "Oslo to Copenhagen" },
        new SelectListItem { Value = "2", Text = "Copenhagen to Oslo" },
        new SelectListItem { Value = "2", Text = "Copenhagen to Stockholm" },
        new SelectListItem { Value = "3", Text = "Stockholm to Copenhagen" },
        new SelectListItem { Value = "1", Text = "Oslo to Stockholm" },
        new SelectListItem { Value = "3", Text = "Stockholm to Oslo" },
    };

        var numberList = new List<SelectListItem>
    {
        new SelectListItem { Value = "0", Text = "0" },
        new SelectListItem { Value = "1", Text = "1" },
        new SelectListItem { Value = "2", Text = "2"}
    };

        vm.Cities = citiesList;
        vm.Number = numberList;

        return View(vm);
    }

    [HttpPost]
    public ActionResult Index(BookingViewModel vm)
    {
        if (ModelState.IsValid)
        {

        }
            return View(vm);   
    }

}
}

BookingViewModel

namespace BookingMvc.Models
{
public class BookingViewModel
{
    public string departureroute { get; set; }
    public string returnroute { get; set; }
    public DateTime departuredate { get; set; }
    public DateTime returndate { get; set; }
    public int adults { get; set; }
    public int childrens { get; set; }

    //Enum lists
    public IEnumerable<SelectListItem> Cities { get; set; }
    public IEnumerable<SelectListItem> Number { get; set; }
}
}

第1步＆＃34;索引视图＆＃34;

@using (Html.BeginForm())
{

<div class="col-sm-4">
    @Html.Label("Outgoing route") <br />
    @Html.DropDownListFor(m => m.departureroute, Model.Cities, new { @class = "dropdownlist" })

    <br />

    @Html.Label("Departure date") <br />
    <div>
        @Html.TextBox("Name", null, new { @class = "dropdownlist" })
    </div>


    <br />

    @Html.Label("Adult") <br />
    @Html.DropDownListFor(m => m.adults, Model.Number, new { @class = "dropdownlist" })
</div>

<div class="col-sm-4">
    @Html.Label("Return route") <br />
    @Html.DropDownListFor(m => m.returnroute, Model.Cities, new { @class = "dropdownlist" })

    <br />

    @Html.Label("Return date") <br />
    <div>
        @Html.TextBox("Name", null, new { @class = "dropdownlist" })

    </div>

    <br />

    @Html.Label("Children") <br />
    @Html.DropDownListFor(m => m.childrens, Model.Number, new { @class = "dropdownlist" })
</div>


<div class="col-sm-4">
    <div class="bookinginfomation">
        @Html.Label("Booking information") <br />
        <button type="submit" class="bookingbutton">Continue</button>
    </div>
</div>
}

希望有人可以告诉我应该注意什么才能获得下一步的价值（观点）

将Html.DropdownListFor值传递给按钮单击时的其他视图

0 个答案: