Question

我有一个包含几个下拉列表的MVC 4局部视图但是当我在索引和其他页面中使用这个局部视图时，它要求我提供下拉源数据的视图包设置。我的问题是，我可以有一个局部视图，它将从其自己的控制器加载所有相关数据，我不必担心我使用它的所有十个页面中的数据源填充。所以请告知。

Answer 1

您可以创建ApplicationController或BaseController并在其中填写下拉列表，并在partial中使用它。例如，见：

ApplicationController

public class ApplicationController : Controller
    {
     public ApplicationController()
        {
            ///RoomNum list
            List<SelectListItem> RoomNumitems = new List<SelectListItem>();
            RoomNumitems.Add(new SelectListItem
            {
                Text = "1",
                Value = "1"
            });
            RoomNumitems.Add(new SelectListItem
            {
                Text = "2",
                Value = "2"
            });
            RoomNumitems.Add(new SelectListItem
            {
                Text = "3",
                Value = "3"
            });
            RoomNumitems.Add(new SelectListItem
            {
                Text = "4",
                Value = "4"
            });

            ViewData["RoomNumListItems"] = RoomNumitems;
            ///

            ///From_Price list
            List<SelectListItem> From_Price_items = new List<SelectListItem>();
            From_Price_items.Add(new SelectListItem
            {
                Text = "30000",
                Value = "30000"
            });
            From_Price_items.Add(new SelectListItem
            {
                Text = "50000",
                Value = "50000"
            });
            From_Price_items.Add(new SelectListItem
            {
                Text = "70000",
                Value = "70000"
            });
            From_Price_items.Add(new SelectListItem
            {
                Text = "100000",
                Value = "100000"
            });

            ViewData["From_PriceListItems"] = From_Price_items;
            ///

            ///To_Price list
            List<SelectListItem> To_Price_items = new List<SelectListItem>();
            To_Price_items.Add(new SelectListItem
            {
                Text = "100000",
                Value = "100000"
            });
            To_Price_items.Add(new SelectListItem
            {
                Text = "150000",
                Value = "150000"
            });
            To_Price_items.Add(new SelectListItem
            {
                Text = "250000",
                Value = "250000"
            });
            To_Price_items.Add(new SelectListItem
            {
                Text = "500000",
                Value = "500000"
            });
            To_Price_items.Add(new SelectListItem
            {
                Text = "1000000",
                Value = "1000000"
            });
            ViewData["To_PriceListItems"] = To_Price_items;
   }
}

部分视图

<div class="row">
    <div class="large-4 columns admin-lbl-fildset push-8 columns">
        @Html.Label("Room number:")
    </div>
    <div class="large-8 columns admin-txt pull-4 columns">
        @Html.DropDownList("RoomNum_SelectedItem", (IEnumerable<SelectListItem>)ViewData["RoomNumListItems"], new { @class = "admin-dropdown" })
    </div>    
</div>
<div class="row">
    <div class="large-3 columns admin-lbl-fildset push-3 columns">
        @Html.Label("To:")
    </div>
    <div class="large-3 columns admin-txt pull-3 columns">
        @Html.DropDownList("To_Price_SelectedItem", (IEnumerable<SelectListItem>)ViewData["To_PriceListItems"], new { @class = "admin-dropdown" })
    </div>

    <div class="large-3 columns admin-lbl-fildset push-3 columns">
        @Html.Label("From:")
    </div>
    <div class="large-3 columns admin-txt pull-3 columns">
        @Html.DropDownList("From_Price_SelectedItem", (IEnumerable<SelectListItem>)ViewData["From_PriceListItems"], new { @class = "admin-dropdown" })
    </div>    
</div>

Cotrollers（例如主页）

public class HomeController : ApplicationController
    {
        //
        // GET: /Home/
        public ActionResult Index()
        {
            return View();
        }

    }

我们可以使用自己的控制器和放大器获得MVC 4局部视图吗？嵌入数据源

1 个答案: