异常详细信息:System.InvalidOperationException:传入字典的模型项的类型是'Sys

本文关键字：类型 Sys 模型 InvalidOperationException System 异常 字典 详细信息 | 更新日期: 2023-09-27 18:12:15

Model: StudentData (Model 1)

namespace Aug16.Models
{
    [Table("Stdnt_Info")]
    public class StudentData
    {
        [Key]
        public long Stdnt_Id { get; set; }
        public string Stdnt_Name { get; set; }
        public string Stdnt_Fname { get; set; }
        public string Stdnt_Address { get; set; }
        public string Stdnt_Semmester { get; set; }
        public DateTime Sem_StartDate { get; set; }
        public DateTime Sem_EndDate { get; set; }
        
        public int Stdnt_Mark1 { get; set; }
        public int Stdnt_Mark2 { get; set; }
        public int Stdnt_Mark3 { get; set; }
        public Decimal Stdnt_Sem_Per { get; set; }
    }
}
-------------------------------------------------------------------------------

DBContext Model: Aug16Data (Model2)

namespace Aug16.Models
{
    public class Stdnt_Details : DbContext
    { 
        public DbSet<StudentData> Student_Information { get; set; }
        //public DbSet<Stdnt_Details> Student_Information { get; set; }
        //public DbSet<Aug16Data> Stdnt_Mark { get; set; }
    }
}
------------------------------------------------------------------------------

控制器:studentdatcontroller 

namespace Aug16.Controllers
{
    public class StudentDataController : Controller
    {
        //
        // GET: /StudentData/
        Aug16.Models.Stdnt_Details StoreDB = new Models.Stdnt_Details();
        
        public ActionResult Aug16DataAction()
        {
            var StdDet = StoreDB.Student_Information.ToList();
            return View(StdDet);
        }
    }
}
---------------------------------------------------------------------------

视图:Aug16DataAction 

@model IEnumerable<Aug16.Models.Stdnt_Details>
@{
    ViewBag.Title = "Aug16DataAction";
}
<h2>Aug16DataAction</h2>
<p>
    @Html.ActionLink("Create New", "Create")
</p>
<table>
    <tr>
        <th></th>
    </tr>
@foreach (var item in Model) {
    <tr>
        <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>

错误如下

'/'应用程序出现服务器错误。

传入字典的模型项的类型是System.Collections.Generic.List[Aug16.Models. list]。'，但是这个字典需要一个类型为'System.Collections.Generic.IEnumerable[Aug16.Models.Stdnt_Details]'的模型项。

这个错误的解决方法是什么?

异常详细信息:System.InvalidOperationException:传入字典的模型项的类型是'Sys

首先，您需要更改您的模型类型，正如在您的问题的注释中提到的。

然而，您正在寻找一个空视图，因为您没有显示所有模型属性的代码。尝试使用以下代码更改视图:

@model IEnumerable<Test.Models.StudentData>
@{
    ViewBag.Title = "Aug16DataAction";
}
<h2>Aug16DataAction</h2>
<p>
    @Html.ActionLink("Create New", "Create")
</p>
<table>
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.Stdnt_Name)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Stdnt_Fname)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Stdnt_Address)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Stdnt_Semmester)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Sem_StartDate)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Sem_EndDate)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Stdnt_Mark1)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Stdnt_Mark2)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Stdnt_Mark3)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Stdnt_Sem_Per)
        </th>
        <th></th>
    </tr>
    @foreach (var item in Model)
    {
        <tr>
            <td>
                @Html.DisplayFor(modelItem => item.Stdnt_Name)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Stdnt_Fname)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Stdnt_Address)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Stdnt_Semmester)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Sem_StartDate)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Sem_EndDate)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Stdnt_Mark1)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Stdnt_Mark2)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Stdnt_Mark3)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Stdnt_Sem_Per)
            </td>
            <td>
                @Html.ActionLink("Edit", "Edit", new { id = item.Stdnt_Id }) |
            @Html.ActionLink("Details", "Details", new { id = item.Stdnt_Id }) |
            @Html.ActionLink("Delete", "Delete", new { id = item.Stdnt_Id })
            </td>
        </tr>
    }
</table>
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