在 PartialView 中仅查看数据库中包含 'Foo' 的行

Question

我有两个数据库。一个数据库包含产品及其详细信息。每个产品都有一个特定的库存编号（例如 AG1000）。第二个数据库包含有关员工输入的每个产品的评论（例如，更新日期、评论以及包含产品库存编号的列）。

对于底部的产品详细信息页面，我想填充一个 table 显示第二个数据库中的所有条目，其中包含显示的产品详细信息的库存编号。

我已成功将分部视图和占位符传递给视图 table。但不幸的是，我这辈子都无法将库存编号传递给部分并让 controller/partial 将数据库 2 中的所有行显示到 table.

查看：

@model IdentitySample.Models.InventoryViewModels

@{
    ViewBag.Title = "Details";
    string StockNumber = Model.StockNumber;
}



<p class="text-right align-top">@Html.ActionLink("Back to List", "Index")</p>
<div class="container">
    <hr />
            <div class="card">
                <div class="card-header"><h2 class="text-center">@Html.DisplayFor(model => model.Year) @Html.DisplayFor(model => model.Make) @Html.DisplayFor(model => model.Model) @Html.DisplayFor(model => model.Trim)</h2></div>
                    <div class="card-body">
                        <div class="row">
                            <div class="col"><img style="width:100%;" src="@Html.DisplayFor(model => model.PhotoUrl)" /></div>
                                <div class="col">
                                    <div class="card">
                                        <div class="card-header"> <h5>Vehicle Details</h5></div>
                                            <div class="card-body">
                                                <table class="table table-light table-hover table-striped thead-dark">
                                                <tbody>
                                                    <tr>
                                                       <th>@Html.DisplayNameFor(model => model.StockNumber)</th>
                                                       <td>@Html.DisplayFor(model => model.StockNumber)</td>
                                                    </tr>
                                                    <tr>
                                                      <th>@Html.DisplayNameFor(model => model.Year)</th>
                                                      <td>@Html.DisplayFor(model => model.Year)</td>
                                                    </tr>
                                                    <tr>
                                                        <th>@Html.DisplayNameFor(model => model.Make)</th>
                                                        <td>@Html.DisplayFor(model => model.Make)</td>
                                                    </tr>
                                                    <tr>
                                                       <th>@Html.DisplayNameFor(model => model.Model)</th>
                                                       <td>@Html.DisplayFor(model => model.Model)</td>
                                                    </tr>
                                                    <tr>
                                                       <th>@Html.DisplayNameFor(model => model.Trim)</th>
                                                       <td>@Html.DisplayFor(model => model.Trim)</td>
                                                    </tr>
                                                    <tr>
                                                        <th>@Html.DisplayNameFor(model => model.Odometer)</th>
                                                        <td>@Html.DisplayFor(model => model.Odometer)</td>
                                                    </tr>
                                                </tbody>
                                                </table>
                                            </div>
                                    </div>
                                </div>
                        </div>
                        <br />
                        <div class="row">
                            <div class="col-12">
                                <div class="card" style="width: 100%;">
                                    <div class="card-header align-middle"><h5>Vehicle Log<a href="#" class="fa fa-2x fa-plus-square float-right"></a></h5></div>

                                    <div class="card-body">
                                        @Html.Partial("_ViewActions", new List<IdentitySample.Models.InventoryActionsModels>())
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
            </div>
</div>

_部分：

@model IEnumerable<IdentitySample.Models.InventoryActionsModels>

<h5>Test Inventory Action View: @ViewBag.StockNumber</h5>

<table class="table table-light table-hover table-striped thead-dark">
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.StockNumber)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.TouchType)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.TouchedBy)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.TouchDate)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.TouchComments)
        </th>
        <th></th>
    </tr>

    @foreach (var item in Model)
    {
        <tr>
            <td>
                @Html.DisplayFor(modelItem => item.StockNumber)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.TouchType)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.TouchedBy)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.TouchDate)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.TouchComments)
            </td>
            <td>
                @Html.ActionLink("Edit", "Edit", new { id = item.Id }) |
                @Html.ActionLink("Details", "Details", new { id = item.Id }) |
                @Html.ActionLink("Delete", "Delete", new { id = item.Id })
            </td>
        </tr>
    }

</table>

控制器：

// GET: InventoryActions
        public ActionResult Index()
        {
            // ViewBag.StockNumber();
            string vehicleId = StockNumber;
            var vehicle = db.InventoryActionsModels.GroupBy(i => i.StockNumber)
                      .Select(g => new InventoryActionsModels()
                      {
                          StockNumber = vehicleId,
                          Id = g.Max(row => row.Id)
                      }).ToList();

                return View(db.InventoryActionsModels.ToListAsync()); 
        }

Answer 1

我猜你应该为库存详细信息创建一个复合视图模型，然后将它传递给你的视图，有点

public class InventoryDetailsViewModel
{
  public InventoryModel Inventory { get; set; }
  public ICollection<InventoryActionsModels> Actions { get; set; }
}

控制器

public async Task<ActionResult> GetInventoryDetails(string stockNumber)
{
  var viewModel = new InventoryDetailsViewModel
  {
    Inventory = await GetInventoryById(stockNumber),
    Actions = await GetInventoryActions(stockNumber)
  };
  return View(viewModel);
}

其中 GetInventoryById 和 GetInventoryActions 是从数据库获取信息的方法

然后在视图中

@model IdentitySample.Models.InventoryDetailsViewModel
@Html.Partial("_ViewInventory", Model.Inventory)
@Html.Partial("_ViewActions", Model.Actions)

在 PartialView 中仅查看数据库中包含 'Foo' 的行

View only rows containing 'Foo' from Database in PartialView

c#

asp.net

asp.net-mvc-5