Bits of .NET

In MVC we cannot pass multiple models from a controller to the single view.
There are a few solution for that problem. But in this article we will use View Model.
Here is the solution:

Let’s say we have Teacher and Student classes.

public class Teacher  
{  
    public int TeacherId { get; set; }  
    public string Code { get; set; }  
    public string Name { get; set; }  
}   
  
public class Student  
{  
    public int StudentId { get; set; }  
    public string Code { get; set; }  
    public string Name { get; set; }  
    public string EnrollmentNo { get; set; }  
}

And those are the methods that help us to get all the teachers and students.

private List<Teacher> GetTeachers()  
{  
    List<Teacher> teachers = new List<Teacher>();  
    teachers.Add(new Teacher { TeacherId = 1, Code = "TT", Name = "Student1" });  
    teachers.Add(new Teacher { TeacherId = 2, Code = "JT", Name = "Student2" });  
    teachers.Add(new Teacher { TeacherId = 3, Code = "RT", Name = "Studen3" });  
    return teachers;  
}   
  
public List<Student> GetStudents()  
{  
    List<Student> students = new List<Student>();  
    students.Add(new Student { StudentId = 1, Code = "L0001", Name = "Student1", EnrollmentNo = "201404150001" });  
    students.Add(new Student { StudentId = 2, Code = "L0002", Name = "Student2", EnrollmentNo = "201404150002" });  
    students.Add(new Student { StudentId = 3, Code = "L0003", Name = "Student3", EnrollmentNo = "201404150003" });  
    return students;  
}

ViewModel is nothing but a single class that may have multiple models. It contains multiple models as a property. It should not contain any method.

ViewModel is passed to the view as a model. To get intellisense in the view, we need to define a strongly typed view.

public class ViewModel  
{  
    public IEnumerable<Teacher> Teachers { get; set; }  
    public IEnumerable<Student> Students { get; set; }  
}

Controller code

public ActionResult IndexViewModel()  
{  
    ViewBag.Message = "Teacher & Student List in Single View";  
    ViewModel mymodel = new ViewModel();  
    mymodel.Teachers = GetTeachers();  
    mymodel.Students = GetStudents();  
    return View(mymodel);  
}

View code

...
@model ViewModel   
@{  
    ViewBag.Title = "Home Page";  
}  
<h2>@ViewBag.Message</h2>  
   
<p><b>Teacher List</b></p>  
   
<table>  
    <tr>  
        <th>Id</th>  
        <th>Code</th>  
        <th>Name</th>  
    </tr>  
    @foreach (Teacher teacher in Model.Teachers)  
    {  
        <tr>  
            <td>@teacher.TeacherId</td>  
            <td>@teacher.Code</td>  
            <td>@teacher.Name</td>  
        </tr>  
    }  
</table>  
   
<p><b>Student List</b></p>  
   
<table>  
    <tr>  
        <th>Id</th>  
        <th>Code</th>  
        <th>Name</th>  
        <th>Enrollment No</th>  
    </tr>  
    @foreach (Student student in Model.Students)  
    {  
        <tr>  
            <td>@student.StudentId</td>  
            <td>@student.Code</td>  
            <td>@student.Name</td>  
            <td>@student.EnrollmentNo</td>  
        </tr>  
    }  
</table>

Reference Article