集成模型和控制器 [英] Integrating the Model and Controller

问题描述

Hello, I have the following code:

I have a problem creating the new record in the database, I get the following error:

System.NotImplementedException: Unable to implement the method or operation.

and wanted to know if it is properly introduced the following piece of code

_db.Add (Palabras_user), because that's where I have the problem

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Mvc.Ajax;
using RForzadas.Models; 

namespace RForzadas.Controllers
{
    public class HomeController : Controller
    {
        private RForzadasBDEntities _db = new RForzadasBDEntities();
        
        //
        // GET: /Home/

        public ActionResult Index()
        {
           return View(_db.RForz);
        }

       
        //
        // GET: /Home/Create

        public ActionResult Create()
        {
            return View();
        }

        //
        // POST: /Home/Create

        [AcceptVerbs(HttpVerbs.Post)]
        public ActionResult Create(HomeController Palabras_user)
        {
            if (!ModelState.IsValid)
            {
                return View("Create", Palabras_user);
            }

            <big>_db.Add(Palabras_user);</big>

            return RedirectToAction("Index");
        }

      

        public ViewResult About()
        {
            throw new NotImplementedException();
        }
    }
}

您可以通过创建" Tengo el siguientecódigo:

En el archivo "Create" tengo el siguiente código:

<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">

        <h2>Create</h2>

        <%= Html.ValidationSummary("Create was unsuccessful. Please correct the errors and try again.") %>

        <% using (Html.BeginForm()) {%>

            <fieldset>

                <legend>Fields</legend>


                <p>

                    <label for="Palabras user">Palabras user:</label>

                    <%= Html.TextBox("Palabras User") %>

                    <%= Html.ValidationMessage("Palabras user", "*") %>

                </p>


                <p>

                    <input type="submit" value="Create" />

                </p>

            </fieldset>

        <% } %>

        <div>

            <%=Html.ActionLink("Back to List", "Index") %>

        </div>

    </asp:Content>

如果可以帮助您确定问题，我将不胜感激.
感谢和问候.

If I could help identify the problem I''d appreciate it.
Thanks and regards.

推荐答案

从RForzadasBDEntities()创建的对象_db没有Add方法.如果看到此对象的Add方法，它是Public吗?如果看到Public方法，它是否接受您要传递的参数类型?

The object _db created from RForzadasBDEntities() does not have an Add method. If you see the Add method on this object, is it Public? If you see a Public method, does it accept the type of argument you are passing it?

检查Post方法

Check your Post method

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create(HomeController Palabras_user)

您不应该将控制器发布到此方法，它应该是视图绑定到的模型对象，例如

You shouldn''t be posting the controller to this method, it should be the model object that your view is bound to, e.g.

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create(UserView Palabras_user)

您不能直接将任何实体添加到数据库上下文中.进入关联的表，然后添加项目.方法显示在Entities上下文中，它会抛出错误msot的时间.可能如果您可以在以下操作中更改代码，则可能会起作用

db.< tables> .Add(< tablerowentity>)

如果您确信由于_db.Add方法

You Cannot directly add to the DB context any entity.So you have to get into the associated table and then add the item.Though the Add <> method is displayed in the Entities Context,it throws error msot of the times.Probably if you could change the code in the following manned it may work

db.<tables>.Add(<tablerowentity>)

Please check if this works if you are assured that problem arises due to the _db.Add Method

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