What is the problem with my code it shows error as (An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code) [Answered]RSS

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  jameslovemic...

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  23 Posts

  What is the problem with my code it shows error as (An unhandled exception occurred during the ex...

  Apr 17, 2020 03:24 PM|jameslovemicrosoft|LINK

  The following is the code I have done.

          public ActionResult GetData()
          {
              SchoolEntities2 entities = new SchoolEntities2();
              var query = from Student in entities.Students
                          from Student_Courses in Student.Student_Courses
                          select new
                          {
                              StudentName = Student.Name,
                              CourseName = Student_Courses.Course,
                              EnrolledDate = Student_Courses.DateOfEnrolment                            
                          };
              var res = query.ToList();
              return View(res);
          }

  This is my model 

      public class StudentInfo
      {
          public string Name { get; set; }
          public Nullable<System.DateTime> DateOfEnrolment { get; set; }
  
          public virtual Course Course { get; set; }
      }

  This is my view:

  @model List<WebApplication1.Models.StudentInfo>
  @{
      ViewBag.Title = "GetData";
  }
  
      <table class="table">
          <thead>
              <tr>
                  <th scope="col">Student Name</th>
                  <th scope="col">Course Name</th>
                  <th scope="col">Enrollment Date</th>
              </tr>
          </thead>
          <tbody>
              @foreach (var item in Model)
              {
                  <tr>
                      <th scope="row">1</th>
                      <td>@item.Name</td>
                      <td>@item.Course.CourseName</td>
                      <td>@item.DateOfEnrolment</td>
                  </tr>
              }
  
  
          </tbody>
      </table>

  the error is 

  System.InvalidOperationException: The model item passed into the dictionary is of type 'System.Collections.Generic.List`1[<>f__AnonymousType2`3[System.String,WebApplication1.Models.Course,System.Nullable`1[System.DateTime]]]', but this dictionary requires a model item of type 'System.Collections.Generic.List`1[WebApplication1.Models.StudentInfo]

  I have search on internet but couldn't understand help please

• • Reply
  bruce (sqlwo...

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  55574 Points

  14299 Posts

  Re: What is the problem with my code it shows error as (An unhandled exception occurred during th...

  Apr 17, 2020 03:29 PM|bruce (sqlwork.com)|LINK

  C# is strongly typed, your query returns an list of an anonymous object:

    new { StudentName = Student.Name, CourseName = Student_Courses.Course, EnrolledDate = Student_Courses.DateOfEnrolment }

  not a List<StudentInfo>

  bruce (sqlwork.com)