在 ASP.NET MVC 中使用 SqlQuery

Question

我的控制器中有一个查询，它从数据库中获取两列，并将其存储在一个变量中以将其返回给视图。我正在使用表格显示数据。以下是代码：

控制器：

public ActionResult DisplayData(LabourTimeModel ltm)
    {

        LabourTimeEntities db = new LabourTimeEntities();
        string query = "Select ProcessItemName, sum(DATEDIFF(MINUTE, LaborTimeOut,LaborTimeIn)) AS 'TimeSpent' FROM LaborTime group by ProcessItemName";

        var data = db.Database.SqlQuery<LabourTimeModel>(query).ToList();

        return View(data);
    }

查看：

@model List<LabourTime.Models.LabourTimeModel>

@{
    ViewBag.Title = "Labour Time - Home";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

    <h2><centre>Display Data</h2><hr />

            <table>
                  <tr>
                     <th colspan="2">Time Spent For Process Item</th>
                  </tr>
                 <tr>
                   <th style="padding:0 15px 0 15px;"> Process Item Name </th>
                      <th style="padding:0 15px 0 15px;"> Time Spent </th>
                   </tr>
                @foreach (LabourTime.Models.LabourTimeModel obj in Model)
                    {
                  <tr>
                   <td style="padding:0 15px 0 15px;">@obj.processItemName.ToString()</td>
                   <td style="padding:0 15px 0 15px;">@obj.TimeSpent</td>
                    </tr>
                    }
           </table>

这给了我想要的输出。但是，我想再写一个查询并将其传递给同一个视图并再显示一个这样的表。我如何实现这一目标？任何帮助表示赞赏，谢谢！

我现在得到的输出：

Column1     Column2
   A          20
   B          10
   C          45

我希望在此下方再显示一个表格。

我尝试过的控制器：

    public ActionResult DisplayData(LabourTimeModel ltm)
    {

        LabourTimeEntities db = new LabourTimeEntities();
        string query = "Select ProcessItemName, sum(DATEDIFF(MINUTE, LaborTimeOut,LaborTimeIn)) AS 'TimeSpent' FROM LaborTime group by ProcessItemName";

string query1 = "ONE MORE QUERY"

        var data = db.Database.SqlQuery<LabourTimeModel>(query).ToList();
        var data1 = db.Database.SqlQuery<LabourTimeModel>(query1).ToList();

        return View(data);
    }

但是，我不能使用返回视图传递两个结果。我被困在这里了。

Answer 1

您需要创建视图模型（具有两个列表的类）并将该对象传递给视图。

var model = new MyModel {
   Data1 = your first query,
   Data2 = your second query
}

return View(model);

在视图中：

@model MyModel 

Answer 2

您也可以使用匿名类型来发送回您的视图

   public ActionResult DisplayData(LabourTimeModel ltm)
{

    LabourTimeEntities db = new LabourTimeEntities();
    string query = "Select ProcessItemName, sum(DATEDIFF(MINUTE, LaborTimeOut,LaborTimeIn)) AS 'TimeSpent' FROM LaborTime group by ProcessItemName";

    string query1 = "ONE MORE QUERY"

    var data = db.Database.SqlQuery<LabourTimeModel>(query).ToList();
    var data1 = db.Database.SqlQuery<LabourTimeModel>(query1).ToList();

    dynamic viewModel = new ExpandoObject();
    viewModel.Query1= data;
    viewModel.Query2=data1;
    return View(viewModel);
}

在你看来，像这样使用它

@Model.Query1.ColumnName