C# 我正在尝试创建web应用程序,但发现EntityCommandExecutionException

C# 我正在尝试创建web应用程序,但发现EntityCommandExecutionException,c#,visual-studio-2010,asp.net-mvc-3,C#,Visual Studio 2010,Asp.net Mvc 3,我试图创建一个web应用程序,但发现EntityCommandExecutionException,这是我的控制器类 namespace DemoMVC.Controllers { public class ContactController : Controller { ContactContext db = new ContactContext(); public ActionResult Index() {

我试图创建一个web应用程序,但发现EntityCommandExecutionException,这是我的控制器类

namespace DemoMVC.Controllers
{
    public class ContactController : Controller
    {
            ContactContext db = new ContactContext();
            public ActionResult Index()
        {
            var contact = db.Contacts.ToList();
            return View(contact);
        }
        public ActionResult Details(int id)
        {
            return View();
        }
        public ActionResult Create()
        {
           return View();
        } 

        [HttpPost]
        public ActionResult Create(Contact person)
        {
            try
            {
                // TODO: Add insert logic here
                db.Contacts.Add(person);
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        //
        // GET: /Contact/Edit/5

        public ActionResult Edit(int id)
        {
            return View();
        }

        //
        // POST: /Contact/Edit/5

        [HttpPost]
        public ActionResult Edit(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add update logic here

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        //
        // GET: /Contact/Delete/5

        public ActionResult Delete(int id)
        {
            return View();
        }

        //
        // POST: /Contact/Delete/5

        [HttpPost]
        public ActionResult Delete(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add delete logic here

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
    }
}
这是我的连接字符串

<add name="ContactContext" connectionString="Data Source=RMSIPDB;Initial Catalog=CoroporateApps;User ID=CorApps;Password=CorApps_123" 
providerName="System.Data.SqlClient" />

And this is my View Page 
@model IEnumerable<DemoMVC.Models.Contact>

@{
    ViewBag.Title = "Index";
}

<h2>Index</h2>

<p>
    @Html.ActionLink("Create New", "Create")
</p>
<table>
    <tr>
        <th>
            Name
        </th>
        <th>
            Address
        </th>
        <th>
            Mobile
        </th>
        <th>
            DataDate
        </th>
        <th></th>
    </tr>

@foreach (var item in Model) {
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.Name)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Address)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Mobile)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.DataDate)
        </td>
        <td>
            @Html.ActionLink("Edit", "Edit", new { id=item.ID }) |
            @Html.ActionLink("Details", "Details", new { id=item.ID }) |
            @Html.ActionLink("Delete", "Delete", new { id=item.ID })
        </td>
    </tr>
}

</table> 

这是我的查看页面
@模型IEnumerable
@{
ViewBag.Title=“Index”;
}
指数

@ActionLink(“新建”、“创建”)

名称 地址 可移动的 数据日期 @foreach(模型中的var项目){ @DisplayFor(modelItem=>item.Name) @DisplayFor(modelItem=>item.Address) @DisplayFor(modelItem=>item.Mobile) @DisplayFor(modelItem=>item.DataDate) @ActionLink(“编辑”,“编辑”,新的{id=item.id})| @ActionLink(“详细信息”,“详细信息”,新的{id=item.id})| @ActionLink(“删除”,“删除”,新的{id=item.id}) }

当我执行代码时,我得到EntityCommandExecutionException,有人能帮我吗

什么是stacktrace?您能给出原始异常吗?@RalphJansen StackTrace:at System.Data.EntityClient.EntityCommandDefinition.ExecuteStorommands(EntityCommand EntityCommand,CommandBehavior行为)at System.Data.Objects.Internal.ObjectQueryExecutionPlan.Execute[TResultType](ObjectContext上下文,ObjectParameterCollection参数值)在System.Data.Objects.ObjectQuery的System.Data.Objects.ObjectQuery
1.GetResults(Nullable
1 forMergeOption)中,在System.Data.Objects.ObjectQuery`1.System.Collections.Generic.IEnumerable.GetEnumerator()中,可以设置断点吗?星图对吗?@RalphJansen是的。。。但是在public ActionResult Index()上的执行正在停止{var contact=db.Contacts.ToList();return View(contact);}您能检查innerexception吗?我认为真正的问题在那里。