我需要在 asp.net MVC 4 中应用更新和删除

Question

基本上我已经创建了一个 mvc 应用程序，它将使用从数据库 edmx.So 生成的 entity framework 对数据库数据执行 CRUD 操作，在添加 EDM 和配置数据库设置之后，我添加了一个名为 CRUD 的控制器启用了脚手架 read/write 操作视图并将模型和数据库上下文附加到 it.Now 一切都按预期工作直到添加新员工即 Create.The 当我 [=35] 时出现问题=] crud 控制器的索引页面，当我按下操作链接编辑或删除任何特定员工数据时，它根本找不到编辑和删除 cshtml 页面，而是显示错误 404 资源不是 found.Please帮我找出问题所在，我在下面发布了我的全部代码：

public class CRUDController : Controller
{
    private TestDBEntities2 db = new TestDBEntities2();
    public ActionResult Index()
    {
        return View(db.Emps.ToList());
    }
    public ActionResult Details(int id = 0)
    {
        Emp emp = db.Emps.Find(id);
        if (emp == null)
        {
            return HttpNotFound();
        }
        return View(emp);
    }
    public ActionResult Create()
    {
        return View();
    }
    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Create(Emp emp)
    {
        if (ModelState.IsValid)
        {
            db.Emps.Add(emp);
            db.SaveChanges();
            return RedirectToAction("Index");
        }
        return View(emp);
    }
    public ActionResult Edit(int id = 0)
    {
        Emp emp = db.Emps.Find(id);
        if (emp == null)
        {
            return HttpNotFound();
        }
        return View(emp);
    }
    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Edit(Emp emp)
    {
        if (ModelState.IsValid)
        {
            db.Entry(emp).State = EntityState.Modified;
            db.SaveChanges();
            return RedirectToAction("Index");
        }
        return View(emp);
    }
    public ActionResult Delete(int id = 0)
    {
        Emp emp = db.Emps.Find(id);
        if (emp == null)
        {
            return HttpNotFound();
        }
        return View(emp);
    }
    [HttpPost, ActionName("Delete")]
    [ValidateAntiForgeryToken]
    public ActionResult DeleteConfirmed(int id)
    {
        Emp emp = db.Emps.Find(id);
        db.Emps.Remove(emp);
        db.SaveChanges();
        return RedirectToAction("Index");
    }
    protected override void Dispose(bool disposing)
    {
        db.Dispose();
        base.Dispose(disposing);
    }
}

Index.cshtml

@model IEnumerable<MvcApplication2.Emp>
@{
    ViewBag.Title = "Index";
}
<h2>Index</h2>
<p>
    @Html.ActionLink("Create New", "Create")
</p>
<table>
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.EmployeeID)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Firstname)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Lastname)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Age)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Project)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Address)
        </th>
        <th></th>
    </tr>

@foreach (var item in Model) {
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.EmployeeID)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Firstname)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Lastname)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Age)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Project)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Address)
        </td>
        <td>
            @Html.ActionLink("Edit", "Edit", new {  /*id=item.PrimaryKey */ }) |
            @Html.ActionLink("Details", "Details", new { /* id=item.PrimaryKey */ }) |
            @Html.ActionLink("Delete", "Delete", new { /* id=item.PrimaryKey */ })
        </td>
    </tr>
}

</table>

Create.cshtml

@model MvcApplication2.Emp
@{
    ViewBag.Title = "Create";
}
<h2>Create</h2>
@using (Html.BeginForm()) {
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)

    <fieldset>
        <legend>Emp</legend>

        <div class="editor-label">
            @Html.LabelFor(model => model.EmployeeID)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.EmployeeID)
            @Html.ValidationMessageFor(model => model.EmployeeID)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Firstname)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Firstname)
            @Html.ValidationMessageFor(model => model.Firstname)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Lastname)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Lastname)
            @Html.ValidationMessageFor(model => model.Lastname)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Age)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Age)
            @Html.ValidationMessageFor(model => model.Age)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Project)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Project)
            @Html.ValidationMessageFor(model => model.Project)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Address)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Address)
            @Html.ValidationMessageFor(model => model.Address)
        </div>

        <p>
            <input type="submit" value="Create" />
        </p>
    </fieldset>
}

<div>
    @Html.ActionLink("Back to List", "Index")
</div>

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

Edit.cshtml

@model MvcApplication2.Emp
@{
    ViewBag.Title = "Edit";
}
<h2>Edit</h2>
@using (Html.BeginForm()) {
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)

    <fieldset>
        <legend>Emp</legend>

        <div class="editor-label">
            @Html.LabelFor(model => model.EmployeeID)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.EmployeeID)
            @Html.ValidationMessageFor(model => model.EmployeeID)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Firstname)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Firstname)
            @Html.ValidationMessageFor(model => model.Firstname)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Lastname)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Lastname)
            @Html.ValidationMessageFor(model => model.Lastname)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Age)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Age)
            @Html.ValidationMessageFor(model => model.Age)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Project)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Project)
            @Html.ValidationMessageFor(model => model.Project)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Address)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Address)
            @Html.ValidationMessageFor(model => model.Address)
        </div>

        <p>
            <input type="submit" value="Save" />
        </p>
    </fieldset>
}

<div>
    @Html.ActionLink("Back to List", "Index")
</div>

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

解决方案资源管理器图片：

Answer 1

尝试添加控制器名称

 @Html.ActionLink("Edit", "Edit", "CRUD", new {/*id=item.PrimaryKey */ }) |
 @Html.ActionLink("Details", "Details", "CRUD", new { /*id=item.PrimaryKey */ }) |
 @Html.ActionLink("Delete", "Delete", "CRUD", new { /*id=item.PrimaryKey */ })

Answer 2

在您的 ActionLinks 中传递 EmployeeID：

@Html.ActionLink("Edit", "Edit", new {id=item.EmployeeID }) |
@Html.ActionLink("Details", "Details", new {id=item.EmployeeID }) |
@Html.ActionLink("Delete", "Delete", new {id=item.EmployeeID })

我需要在 asp.net MVC 4 中应用更新和删除

I need to apply update and delete in asp.net MVC 4

c#

asp.net-mvc-4

razor

dbcontext

edmx