如何将联接SQL查询表结果传递给另一种方法？

Question

I am working in ASP.NET MVC using Entity Framework. I have two tables, AppointmentDb and StudentDb in my db. I wish to join them in the controller and pass the result to another action method within the controller. What is the return type of this new table that I pass in Details action?

public ActionResult Index(AdminViewModel model)
{
    if (ModelState.IsValid)
    {              
        var innerJoinQuery = from appointment in AppointmentDb
                             join student in StudentDb on appointment.StudentFirstName equals student.FirstName
                             select appointment;
        return View("Details",innerJoinQuery);
    }
}

public ActionResult Details(?????? innerJoinQuery)
{           
    return View();
}

Edit 1:

From the answers below, I edited to:

    public ActionResult Details(IQueryable<Appointment> appointment)
    {

        return View(appointment);
    }

I am still unable to call the columns as desired below. Some of them like AppointmentID are from AppointmentDb and the rest are from StudentDb Below is the View Details.cshtml :

@model IQueryable<OdeToFood.Entities.Appointment>

@{
    ViewBag.Title = "Details";
}

<h2>Index</h2>
@Html.ActionLink("Back to Search", "Index")
<table class="table">
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.AppointmentID)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.StudentFirstName)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.StudentID)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.AppointmentDate)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.AppointmentTime)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Status)
        </th>
    </tr>
</table>

How should I make this View work?

Edit 2:

I have made the edits as suggested in Edit 1. There is yet another small error in my complete View.cshtml . This is the error I receive foreach cannot operate on Variables of type OdeToFood.ViewModels.AdminDetailsViewModel because it does not contain definition for GetEnumerator

@model AdminDetailsViewModel

@{
    ViewBag.Title = "Details";
}

<h2>Index</h2>
@Html.ActionLink("Back to Search", "Index")
<table class="table">
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.AppointmentID)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.StudentFirstName)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.StudentLastName)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.StudentID)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.AppointmentDate)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.AppointmentTime)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Status)
        </th>
    </tr>

    @foreach (var item in Model)
    {
        <tr>
            <td>
                @Html.DisplayFor(modelItem => item.AppointmentID)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.StudentFirstName)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.StudentLastName)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.StudentID)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.AppointmentDate)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.AppointmentTime)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Status)
            </td>
        </tr>
    }

</table>

Answer 1

Your query code returns IQueryable<AppointmentDb> :

 public ActionResult Details(IQueryable<AppointmentDb> innerJoinQuery)
 {           
        return View();
 }

Approach 2:

Better execute your query first:

var innerJoinQuery = (from appointment in AppointmentDb
                     join student in StudentDb 
                     on appointment.StudentFirstName equals student.FirstName
                     select appointment).ToList();

Then pass the resulting list:

public ActionResult Details(List<AppointmentDb> innerJoinQuery)
{           
    return View();
}

Edit:

You need to create a class to hold data from multiple tables:

class MyViewModel
{
    public int AppointmentID { set; get; }
    public string StudentFirstName { set; get; }
    // continue the rest
}

Then change your query to:

from appointment in AppointmentDb
join student in StudentDb
on appointment.StudentFirstName equals student.FirstName
select new MyViewModel()
{
    AppointmentID = AppointmentDb.AppointmentID,
    StudentFirstName = StudentDb.StudentFirstName
    // continue the rest
};

Answer 2

You can use object type

public ActionResult Details(object innerJoinQuery)
{           
   return View();
}