MVC 显示模型中的变量

Question

我很难弄清楚如何显示在我的 "Model" 文件中设置的变量（然后在我的 "View" 文件中填充我的 "Service" 文件。学生信息模型：

using System;
using System.ComponentModel.DataAnnotations;
using System.Data.Entity;
using System.Globalization;

namespace SAAS.Models
{
    public class StudentInfo
    {
        public StudentInfo(int studentID, string name, string ssan, DateTime birthdate, string address, string homePhone, string enrollmentType, string diplomaGED, string cellPhone, string sex, string race, string altName, string altRelation, string altPhone, string altAddress, DateTime altDateUpdated, string altUpdatedBy, string payStatus, string regionalWaiver, string previousResident, DateTime lastStatusChange, DateTime enrollmentDate, DateTime actEnrollmentDate, DateTime arrivalDate, DateTime atEnrollmentDate, string gedStatus, string gedState, DateTime gedDate, string vocationStatus, DateTime separationDate, string sepAddress, string sepPhone)
        {
            StudentID = studentID;
            Name = name;
            SSAN = ssan;
            Birthdate = birthdate.ToString("dd MMMM yyyy", CultureInfo.InvariantCulture);
            Address = address;
            HomePhone = homePhone;
            EnrollmentType = enrollmentType;
            DiplomaGED = diplomaGED;
            CellPhone = cellPhone;
            Sex = sex;
            Race = race;
            AltName = altName;
            AltRelation = altRelation;
            AltPhone = altPhone;
            AltAddress = altAddress;
            AltDateUpdated = altDateUpdated.ToString("dd-MMMM-yyyy", CultureInfo.InvariantCulture);
            AltUpdatedBy = altUpdatedBy;
            PayStatus = payStatus;
            RegionalWaiver = regionalWaiver;
            PreviousResident = previousResident;
            LastStatusChange = lastStatusChange.ToString("dd MMMM yyyy", CultureInfo.InvariantCulture);
            EnrollmentDate = enrollmentDate.ToString("dd MMMM yyyy", CultureInfo.InvariantCulture);
            ActEnrollmentDate = actEnrollmentDate.ToString("dd MMMM yyyy", CultureInfo.InvariantCulture);
            ArrivalDate = arrivalDate.ToString("dd MMMM yyyy", CultureInfo.InvariantCulture);
            AtEnrollmentDate = atEnrollmentDate.ToString("dd MMMM yyyy", CultureInfo.InvariantCulture);
            GedStatus = gedStatus;
            GedState = gedState;
            GedDate = gedDate.ToString("dd MMMM yyyy", CultureInfo.InvariantCulture);
            VocationStatus = vocationStatus;
            SeparationDate = separationDate.ToString("dd MMMM yyyy", CultureInfo.InvariantCulture);
            SepAddress = sepAddress;
            SepPhone = sepPhone;
        }

        [Key]
        public int StudentID { get;set; }
        public string Name { get; set; }
        public string SSAN { get; set; }
        public string Birthdate { get;set; }
        public string Address { get;set; }
        public string HomePhone { get;set; }
        public string EnrollmentType { get;set; }
        public string DiplomaGED { get;set; }
        public string CellPhone { get;set; }
        public string Sex { get; set; } 
        public string Race { get;set; }
        public string AltName { get;set; }
        public string AltRelation { get;set; }
        public string AltPhone { get;set; }
        public string AltAddress { get;set; }
        public string AltDateUpdated { get;set; }
        public string AltUpdatedBy { get;set; }
        public string PayStatus { get;set; }
        public string RegionalWaiver { get;set; }
        public string PreviousResident { get;set; }
        public string LastStatusChange { get;set; }
        public string EnrollmentDate { get;set; }
        public string ActEnrollmentDate { get;set; }
        public string ArrivalDate { get;set; }
        public string AtEnrollmentDate { get;set; }
        public string GedStatus { get;set; }
        public string GedState { get;set; }
        public string GedDate { get;set; }
        public string VocationStatus { get;set; }
        public string SeparationDate { get;set; }
        public string SepAddress { get;set; }
        public string SepPhone { get;set; }
    }
}

学生信息服务：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using SAAS.Models;

namespace SAAS.Services
{
    public class StudentInfoService
    {
        private static readonly List<StudentInfo> StudentInfos;

        static StudentInfoService()
        {
            StudentInfos = new List<StudentInfo>
            {
                new StudentInfo(87654321, "John Doe", "123-45-6789", new DateTime(1986, 3, 29), "1234 Oak Street, Destin, FL", "(210) 555-1212", "O", "Y", "(210) 555-1212", "M", "W", "Joyce Doe", "Mother", "610-555-5555", "123 Magnolia St., Biloxi, MS 21818", new DateTime(2014, 9, 28), "Spacely Sprocket", "1-Normal", "N", "N", new DateTime(2014, 9, 18), new DateTime(2014, 4, 15), new DateTime(2014, 4, 15), new DateTime(2014, 4, 15), new DateTime(2014, 4, 15), "Passed", "NY", new DateTime(2013, 2, 3), "3 Trainee", new DateTime(2014, 12, 12), "123 Maple St., Apt 62, Anytown, NY 12345", "(555) 555-1111")
            };
        }

        public List<StudentInfo> GetStudentInfos(int start, int length)
        {
            return FilterStudentInfo().Skip(start).Take(length).ToList();
        }

        public int Count()
        {
            return FilterStudentInfo().Count();
        }

        public IQueryable<StudentInfo> FilterStudentInfo()
        {
            IQueryable<StudentInfo> results = StudentInfos.AsQueryable();
            return results;
        }
    }
}

信息（视图）：

@model SAAS.Models.StudentInfo
<link href="~/Content/info.css" rel="stylesheet" />
@{
    ViewBag.Title = "Student - Info";
    ViewBag.SubTitle = "General Info";
}

@Html.Partial("_StudentNavPartial")
@Html.Partial("_StudentSearchBar")
<div class="container-fluid left">
    <h4>@ViewBag.SubTitle</h4>
<div class="outline">
    <table id="General" class="borderless">
        <tr>
            <td><strong>Birthdate: </strong></td>
            <td><strong>Enrollment Type: </strong></td>
            <td><strong>Sex: </strong></td>
            <td><strong>Race: </strong></td>
        </tr>
        <tr>
            <td><strong>Address: </strong></td>
            <td><strong>Diploma/GED: </strong></td>
        </tr>
        <tr>
            <td><strong>Home Phone: </strong></td>
            <td><strong>Cell Phone: </strong></td>
        </tr>
    </table>
    <br />
    <h5>Alternate Addresses</h5>
    <table id="AlternateAddresses" class="table table-striped table-bordered table-hover text-nowrap">
        <thead>
            <tr>
                <th data-column="AltName" class="text-center" id="TDtooltip" data-toggle="tooltip" data-placement="bottom" data-original-title="Alternate Contact Name" data-container="body">Contact Name</th>
                <th data-column="AltRelation" class="text-center" id="TDtooltip" data-toggle="tooltip" data-placement="bottom" data-original-title="Alternate Contact Relation" data-container="body">Relation</th>
                <th data-column="AltPhone" class="text-center" id="TDtooltip" data-toggle="tooltip" data-placement="bottom" data-original-title="Alternate Contact Phone Number" data-container="body">Phone</th>
                <th data-column="AltAddress" class="text-center" id="TDtooltip" data-toggle="tooltip" data-placement="bottom" data-original-title="Alternate Contact Address" data-container="body">Address</th>
                <th data-column="AltDateUpdated" class="text-center" id="TDtooltip" data-toggle="tooltip" data-placement="bottom" data-original-title="Date Alternate Contact Updated" data-container="body">Date Updated</th>
                <th data-column="AltUpdatedBy" class="text-center" id="TDtooltip" data-toggle="tooltip" data-placement="bottom" data-original-title="Who Updated Alternate Contact Information" data-container="body">Updated By</th>
            </tr>
            </thead>
    </table>
    </div>
    <br />
    <h4>Enrollment Info</h4>
    <div class="outline">
        <table id="enrollmentInfo" class="borderless">
            <tr>
                <td><strong>Student Pay Status: </strong></td>
                <td><strong>Date Status Last Change: </strong></td>
                <td></td>
            </tr>
            <tr>
                <td><strong>Regional Waiver: </strong></td>
                <td><strong>Enrollment Date: </strong></td>
                <td><strong>Arrival Date: </strong></td>
            </tr>
            <tr>
                <td><strong>Previous Resident: </strong></td>
                <td><strong>ACT Enrollment Date: </strong></td>
                <td><strong>AT Enrollment Date: </strong></td>
            </tr>
        </table>
        <br />
        <h5>Education</h5>
        <table id="education">
            <tr>
                <td><strong>GED Status: </strong></td>
                <td><strong>GED State: </strong></td>
                <td><strong>GED Date: </strong></td>
                <td><strong>Vocation Status: </strong></td>
            </tr>
        </table>
        <br />
        <h5>Separation</h5>
        <table id="separation">
            <tr>
                <td><strong>Date: </strong></td>
                <td><strong>Address: </strong></td>
                <td><strong>Phone: </strong></td>
            </tr>
        </table>
    </div>
</div>

@section scripts
{
    @Scripts.Render("~/bundles/dataTables")
<script type="text/javascript">

    $.extend($.fn.dataTable.defaults, {
            'pagingType': 'full_numbers',
            'pageLength': 2,
            'language': {
                'paginate': {
                    'first': '&laquo;',
                    'last': '&raquo;',
                    'previous': '&lsaquo;',
                    'next': '&rsaquo;'
                },
            },
            //'dom': '<"top"f>rt<"bottom"<"pull-left"l><"pull-right"i>p<"clear">>',
            'dom': '<"top">rt<"bottom"<"pull-left"><"pull-right"><"clear">>',
            'initComplete': function (settings, json) {
                $('.dataTables_filter input[type=search]').attr('placeholder', 'Search');
            }
        });
    $('#AlternateAddresses').dataTable({
        'ajax': {
            type: 'POST',
            url: '@Url.Action("GetData", "StudentInfo")',
            //data: function(d) {
            //}
            "bPaginate": false,
        },
        columns: [
            {
                data: 'AltName',
                sortable: true,
                className: "text-left"
            },
            {
                data: 'AltRelation',
                sortable: true,
                className: "text-left"
            },
            {
                data: 'AltPhone',
                sortable: true,
                className: "text-left"
            },
            {
                data: 'AltAddress',
                sortable: true,
                className: "text-left"
            },
            {
                data: 'AltDateUpdated',
                sortable: true,
                className: "text-left"
            },
            {
                data: 'AltUpdatedBy',
                sortable: true,
                className: "text-left"
            }
        ],
        //jQueryUI: true,
        sort: true,
        ordering: true,
        order: [0, 'AltName'],
        processing: true,
        serverSide: true
    });
    $('[data-toggle="tooltip"]').tooltip({
        delay: 0,
        track: true,
        fade: 100
    });
    </script>
}

我的控制器是：

using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.Mvc;
using SAAS.Models;
using SAAS.Services;

namespace SAAS.Controllers
{
    public class StudentInfoController : Controller
    {

        // GET: StudentInfo
        public ActionResult Info()
        {
            return View();
        }

        public JsonResult GetData(DTParameters dtModel, FilterViewModel filterModel)
        {
            try
            {
                List<StudentInfo> data = new StudentInfoService().GetStudentInfos(dtModel.Start, dtModel.Length);
                int count = new StudentInfoService().Count();
                DTResult<StudentInfo> result = new DTResult<StudentInfo>
                {
                    draw = dtModel.Draw,
                    data = data,
                    recordsFiltered = count,
                    recordsTotal = count
                };
                return Json(result);
            }
            catch (Exception ex)
            {
                return Json(new { error = ex.Message });
            }
        }
    }
}

所以我要做的是将 "Birthdate" "EnrollmentType" 等变量放在不是数据表的表中（"General"、"enrollmentInfo"、等），因此它将显示为，例如：

出生日期： 1994 年 4 月 29 日

那么如何引用和显示这些变量呢？谢谢！

Answer 1

从您的角度来看，假设它是剃须刀，您只需执行以下操作：

Birthdate: @Model.Birthdate

要初始化您的服务，您可以在控制器中使用依赖注入。

这将涉及：

选择和安装 DI 容器
在您的控制器上创建接受服务并将其分配给只读变量的构造函数

如果没有看到您的控制器代码或不知道您使用的是哪个 DI，则很难给出具体示例。

值得阅读以下示例，其中显示了如何准确执行此操作的基础知识。

MSDN dependency injection article

ps您不需要以那种方式创建构造函数。

您可以简单地创建带有初始值设定项的 StudentInfo 对象，如下所示（添加所有需要的字段）：

new StudentInfo { StudentID = 1, Name = "A Name" };

MSDN object initializer reference

更新

我会将其简化为简短的示例。

首先，我将重构您的服务以删除您不需要的静态方法和字段。只要有你的方法 return 集合。

为您的服务提取接口，即IStudentInfoService公开方法。

向您的控制器添加一个构造函数，将服务注入其中。

public class StudentInfoController : Controller
{
private readonly IStudentInfoService _studentService;

    public StudentInfoController(IStudentInfoService studentService)
    {
      _studentService = studentService;
    } 

    // GET: StudentInfo
    public ActionResult Info()
    {
        var model = _studentService.FilterStudentInfo();
        return View(model);
    }

最后安装 DI 并设置引导程序（Unity 的 steps 在上面的文章中）。

MVC 显示模型中的变量

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