C# 我想同时在两个模型上应用每个循环Asp.NETMVC

我想同时申请两个模型上的每个循环

我的控制器操作是：

public ActionResult MarkAttendance(int id)
{
    var students = _context.Students.Where(c => c.ClassId == id).ToList();
    var status = _context.Statuses.ToList();

    var viewModel = new AttendanceViewModel
    {
        Student = students,
        Status = status
    };

    return View(viewModel);
}

public class AttendanceViewModel
{
    public IEnumerable<Student> Student { get; set; }
    public IEnumerable<Status> Status { get; set; }
}

@model  Pioneer.ViewModel.AttendanceViewModel
@foreach (var student in Model.Student)
{
    <tr>
        <td>@student.Name</td>
        <td>@student.RollNo</td>
        <td>
            <div data-toggle="buttons">
                <label class="btn btn-success active">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "Present", new { id = "1" })
                </label>
                <label class="btn btn-danger">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "Absent", new { id = "2" })
                </label>
                <label class="btn btn-primary">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "On Leave", new { id = "3" })
                </label>
                <label class="btn btn-warning">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "Short Leave", new { id = "4" })
                </label>
            </div>
        </td>                                           
    </tr>
}

public class AttendanceViewModel
{
    public IEnumerable<Student> Student { get; set; }
}

public class Student
{
    public IEnumerable<Status> Status { get; set; }
}

@model  Pioneer.ViewModel.AttendanceViewModel       
@foreach (var student in Model.Student)
{
    <tr>
        <td>@student.Name</td>
        <td>@student.RollNo</td>

        @foreach(var status in student)
        {
            <td>
                <div data-toggle="buttons">
                    <label class="btn btn-success active">
                        @Html.RadioButtonFor(status.StudentStatus, "Present", new { id = "1" })
                    </label>
                    <label class="btn btn-danger">
                        @Html.RadioButtonFor(statusStudentStatus, "Absent", new { id = "2" })
                    </label>
                    <label class="btn btn-primary">
                        @Html.RadioButtonFor(status.StudentStatus, "On Leave", new { id = "3" })
                    </label>
                    <label class="btn btn-warning">
                        @Html.RadioButtonFor(status.StudentStatus, "Short Leave", new { id = "4" })
                    </label>
                </div>
            </td>  
        }
    </tr>
}

我的学生模型是

 public class Student
{
    public int Id { get; set; }

    [Required]
    [StringLength(30)]
    [RegularExpression(@"^[A-Za-z\s]{1,}[\.]{0,1}[A-Za-z\s]{0,}$", ErrorMessage = "Invalid name. Use letters only")]
    public string Name { get; set; }

    [Required]
    [StringLength(30)]
    [RegularExpression(@"^[A-Za-z\s]{1,}[\.]{0,1}[A-Za-z\s]{0,}$", ErrorMessage = "Invalid name. Use letters only")]
    [Display(Name = "Father Name")]
    public String FatherName { get; set; }

    [Required]
    [Range(0, 10000)]
    public int Fee { get; set; }

    [Required]
    [RegularExpression(@"^((\+92)|(0092))-{0,1}\d{3}-{0,1}\d{7}$|^\d{11}$|^\d{4}-\d{7}$", ErrorMessage = "Please enter only mobile number, Landline not acceptable")]
    [Display(Name = "Student Contact No.")]
    public string StudentContact { get; set; }

    [Required]
    [RegularExpression(@"^[0-9]+$", ErrorMessage = "Please enter correct phone number")]
    [Display(Name = "Guardian Contact No.")]
    public string GuardianContact { get; set; }

    [Required]
    [RegularExpression(@"^[0-9]+$", ErrorMessage = "Enter only numbers")]
    [Display(Name = "Roll Number")]
    [IfRollNoExists]
    public int RollNo { get; set; }

    [Required]
    [Display(Name = "Record Date")]
    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}")]
    public DateTime DateTime { get; set; }

    [Display(Name = "Student Picture")]
    public String ImageURL { get; set; }

    public Class Class { get; set; }

    [Required]
    [Display(Name = "Class Title")]
    public int ClassId { get; set; }

    [ForeignKey("Account")]
    public int AccountId { get; set; }

    public virtual Account Account { get; set; }


}

  public class Status
{
    public int Id { get; set; }

    public string StudentStatus { get; set; }
}

我的身份类别是

 public class Student
{
    public int Id { get; set; }

    [Required]
    [StringLength(30)]
    [RegularExpression(@"^[A-Za-z\s]{1,}[\.]{0,1}[A-Za-z\s]{0,}$", ErrorMessage = "Invalid name. Use letters only")]
    public string Name { get; set; }

    [Required]
    [StringLength(30)]
    [RegularExpression(@"^[A-Za-z\s]{1,}[\.]{0,1}[A-Za-z\s]{0,}$", ErrorMessage = "Invalid name. Use letters only")]
    [Display(Name = "Father Name")]
    public String FatherName { get; set; }

    [Required]
    [Range(0, 10000)]
    public int Fee { get; set; }

    [Required]
    [RegularExpression(@"^((\+92)|(0092))-{0,1}\d{3}-{0,1}\d{7}$|^\d{11}$|^\d{4}-\d{7}$", ErrorMessage = "Please enter only mobile number, Landline not acceptable")]
    [Display(Name = "Student Contact No.")]
    public string StudentContact { get; set; }

    [Required]
    [RegularExpression(@"^[0-9]+$", ErrorMessage = "Please enter correct phone number")]
    [Display(Name = "Guardian Contact No.")]
    public string GuardianContact { get; set; }

    [Required]
    [RegularExpression(@"^[0-9]+$", ErrorMessage = "Enter only numbers")]
    [Display(Name = "Roll Number")]
    [IfRollNoExists]
    public int RollNo { get; set; }

    [Required]
    [Display(Name = "Record Date")]
    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}")]
    public DateTime DateTime { get; set; }

    [Display(Name = "Student Picture")]
    public String ImageURL { get; set; }

    public Class Class { get; set; }

    [Required]
    [Display(Name = "Class Title")]
    public int ClassId { get; set; }

    [ForeignKey("Account")]
    public int AccountId { get; set; }

    public virtual Account Account { get; set; }


}

  public class Status
{
    public int Id { get; set; }

    public string StudentStatus { get; set; }
}

我的视图模型是：

public ActionResult MarkAttendance(int id)
{
    var students = _context.Students.Where(c => c.ClassId == id).ToList();
    var status = _context.Statuses.ToList();

    var viewModel = new AttendanceViewModel
    {
        Student = students,
        Status = status
    };

    return View(viewModel);
}

public class AttendanceViewModel
{
    public IEnumerable<Student> Student { get; set; }
    public IEnumerable<Status> Status { get; set; }
}

@model  Pioneer.ViewModel.AttendanceViewModel
@foreach (var student in Model.Student)
{
    <tr>
        <td>@student.Name</td>
        <td>@student.RollNo</td>
        <td>
            <div data-toggle="buttons">
                <label class="btn btn-success active">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "Present", new { id = "1" })
                </label>
                <label class="btn btn-danger">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "Absent", new { id = "2" })
                </label>
                <label class="btn btn-primary">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "On Leave", new { id = "3" })
                </label>
                <label class="btn btn-warning">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "Short Leave", new { id = "4" })
                </label>
            </div>
        </td>                                           
    </tr>
}

public class AttendanceViewModel
{
    public IEnumerable<Student> Student { get; set; }
}

public class Student
{
    public IEnumerable<Status> Status { get; set; }
}

@model  Pioneer.ViewModel.AttendanceViewModel       
@foreach (var student in Model.Student)
{
    <tr>
        <td>@student.Name</td>
        <td>@student.RollNo</td>

        @foreach(var status in student)
        {
            <td>
                <div data-toggle="buttons">
                    <label class="btn btn-success active">
                        @Html.RadioButtonFor(status.StudentStatus, "Present", new { id = "1" })
                    </label>
                    <label class="btn btn-danger">
                        @Html.RadioButtonFor(statusStudentStatus, "Absent", new { id = "2" })
                    </label>
                    <label class="btn btn-primary">
                        @Html.RadioButtonFor(status.StudentStatus, "On Leave", new { id = "3" })
                    </label>
                    <label class="btn btn-warning">
                        @Html.RadioButtonFor(status.StudentStatus, "Short Leave", new { id = "4" })
                    </label>
                </div>
            </td>  
        }
    </tr>
}

下面我附上了错误的图片

---

如果我在这里使用HTML helper，请告诉我是否可以在不使用for each的情况下迭代我的行？

您试图实现的目标是不可能的。根据您的查看代码，

状态

模型应该是

学生

模型类的一部分

因此您的视图模型将如下所示：

public ActionResult MarkAttendance(int id)
{
    var students = _context.Students.Where(c => c.ClassId == id).ToList();
    var status = _context.Statuses.ToList();

    var viewModel = new AttendanceViewModel
    {
        Student = students,
        Status = status
    };

    return View(viewModel);
}

public class AttendanceViewModel
{
    public IEnumerable<Student> Student { get; set; }
    public IEnumerable<Status> Status { get; set; }
}

@model  Pioneer.ViewModel.AttendanceViewModel
@foreach (var student in Model.Student)
{
    <tr>
        <td>@student.Name</td>
        <td>@student.RollNo</td>
        <td>
            <div data-toggle="buttons">
                <label class="btn btn-success active">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "Present", new { id = "1" })
                </label>
                <label class="btn btn-danger">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "Absent", new { id = "2" })
                </label>
                <label class="btn btn-primary">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "On Leave", new { id = "3" })
                </label>
                <label class="btn btn-warning">
                    @Html.RadioButtonFor(m => m.Status.StudentStatus, "Short Leave", new { id = "4" })
                </label>
            </div>
        </td>                                           
    </tr>
}

public class AttendanceViewModel
{
    public IEnumerable<Student> Student { get; set; }
}

public class Student
{
    public IEnumerable<Status> Status { get; set; }
}

@model  Pioneer.ViewModel.AttendanceViewModel       
@foreach (var student in Model.Student)
{
    <tr>
        <td>@student.Name</td>
        <td>@student.RollNo</td>

        @foreach(var status in student)
        {
            <td>
                <div data-toggle="buttons">
                    <label class="btn btn-success active">
                        @Html.RadioButtonFor(status.StudentStatus, "Present", new { id = "1" })
                    </label>
                    <label class="btn btn-danger">
                        @Html.RadioButtonFor(statusStudentStatus, "Absent", new { id = "2" })
                    </label>
                    <label class="btn btn-primary">
                        @Html.RadioButtonFor(status.StudentStatus, "On Leave", new { id = "3" })
                    </label>
                    <label class="btn btn-warning">
                        @Html.RadioButtonFor(status.StudentStatus, "Short Leave", new { id = "4" })
                    </label>
                </div>
            </td>  
        }
    </tr>
}

---

m.Status

its

IEnumerable

，它没有

StudentStatus

属性。

@Html.RadioButtonFor(m => m.Status.StudentStatus, "Absent", new { id = "2" })

---

首先，viewmodel名称和类名都处于状态，请更改它，然后重试。你确定StudentStatus在Status中吗？因为没有对modelu的描述。这里有一些不正确的逻辑。请明确说明你想要实现的目标。@anete.anetes我更新了我的问题。我已经测试了两种解决方案，在我这方面似乎效果很好。你试过答案中提到的两种解决方案吗？你现在犯了什么错误@Alamzaibfarookin在嵌套循环中，它给出了

student

不可枚举的错误。对于每个循环，无法迭代Pioneer.Models.StudentMy Controller

public ActionResult MarkAttention（int id）{var students=_context.students.Where（c=>c.ClassId==id.ToList（）；var status=_context.Statuses.ToList（）；var viewModel=new attentinceviewmodel{Student=students}；返回视图（viewModel）；}

我解决了嵌套循环中的问题。现在我无法访问

状态

属性。当我在单选按钮

状态中写入时。StudentStatus

无法识别

StudentStatus

你能用我提到的

@方法而不是
@foreach
方法检查一下吗？@AlamzaibFarooq