Question

单击索引页面中的编辑链接它给我错误传递到字典中的模型项的类型为＆System; System.Data.Entity.DynamicProxies.Employee_2EF71CC17A29BA91B02BC5CDB0EE5AF82D363EEF7E174A21C9546772913AA929＆＃39;，但此字典需要类型为＆＃39; WebCourse.Models.Customemployee＆＃39;的模型项。我有自定义模型Customemployee

namespace WebCourse.Models Customemployee
{
    public class Customemployee
    {

//represent employee table in database

     public string Name { get; set; }
        public int Salary { get; set; }
        public string Email { get; set; }
        public int DistrictId { get; set; }
//represent employee course table in database
       public List<EmployeeCourse> Courses { get; set; }

//represent employee language table in database

       public List<EmployeeLangage> Langs { get; set; }

    }

}

和我的控制者经纪人

using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using WebCourse.Models;
using System.Data.Entity;
namespace WebCourse.Controllers
{
    public class empcourseController : Controller
    {
        mycourseEntities db = new mycourseEntities();
        // GET: empcourse
        public ActionResult Index()
        {
            var query = db.Employees.ToList().Select(p => new EmpInfo
            {
                Id = p.Id,
                Name = p.Name,
                Salary = Convert.ToInt32( p.Salary),
                Email = p.Email,
                DistrictName = p.Destrict.DistrictName,
                CityName = p.Destrict.City.CityName,
                CountryName = p.Destrict.City.Country.CountryName,
                CourseNames = p.EmployeeCourses.Select(t => t.Course.CourseName).ToList(),
                LanguageName = p.EmployeeLangages.Select(t => t.Language.LnaguageName).ToList(),
                levelName = p.EmployeeLangages.Select(t => t.Level.LevelName).ToList(),
                CourseName = string.Join(",", p.EmployeeCourses.Select(t => t.Course.CourseName).ToList())
            });

            return View(query);

        }
        public ActionResult Create()
        {
            ViewBag.CountryId = new SelectList(db.Countries, "Id", "CountryName");
            ViewBag.LanaguageId = new SelectList(db.Languages.ToList(), "Id", "LnaguageName");
            ViewBag.LevelId = new SelectList(db.Levels.ToList(), "Id", "LevelName");
            ViewBag.CourseId = new SelectList(db.Courses.ToList(), "Id", "CourseName");
            return View();
        }
        public ActionResult Edit(int id)
        {
//how to pass data from index view to edit view
            Employee old = db.Employees.Find(id);
            return View(old);

        }
      [HttpPost]
        public ActionResult Create(Customemployee cemp)
        {


            using (mycourseEntities db = new mycourseEntities())
            {
                Employee E = new Employee { Name = cemp.Name, Salary = cemp.Salary, Email = cemp.Email, DistrictId = cemp.DistrictId };
                foreach (var i in cemp.Courses)
                {

                    E.EmployeeCourses.Add(i);
                    db.SaveChanges();
                }
                foreach (var i in cemp.Langs)
                {

                    E.EmployeeLangages.Add(i);
                    db.SaveChanges();
                }
                db.Employees.Add(E);
                db.SaveChanges();
            }
            return View();
        }
        public JsonResult getcitybyid(int id)
        {
            db.Configuration.ProxyCreationEnabled = false;
            return Json(db.Cities.Where(a => a.CountryId == id), JsonRequestBehavior.AllowGet);
        }
        public JsonResult getdistrictbyid(int id)
        {
            db.Configuration.ProxyCreationEnabled = false;
            return Json(db.Destricts.Where(a => a.CityId == id), JsonRequestBehavior.AllowGet);
        }
    }
}

错误显示在代码

中

public ActionResult Edit(int id)
            {
    //how to pass data from index view to edit view
                Employee old = db.Employees.Find(id);
                return View(old);

            }

如何将显示数据的索引视图中的数据传递给编辑视图

Answer 1

从错误消息中，您的编辑视图显示为Customemployee类型。这意味着您应该将编辑操作方法中的Customemployee类对象传递给此视图。但是您当前的代码是发送Employee类型的对象。

因此，请更新您的编辑操作方法，以将正确的对象发送到视图。

public ActionResult Edit(int id)
{
   Employee old = db.Employees.Find(id);
   if(old!=null)
   {
     var vm = new CustomEmployee();
     vm.Name = old.Name;
     vm.Email = old.Email;
     // Assign other property values as needed.
     return View(vm);
   }  
   return Content("No employees found for the Id passed"); 
   // to do : Ideally return a "NotFound" view
}

如何将数据从索引视图传递到编辑视图

1 个答案: