通过局部视图向表中添加数据

Question

我正在使用MVC创建的论坛，我无法使用我的部分视图添加表格数据。

我的“ShowPost”视图如下所示（当您使用实体框架创建具有读/写功能的控制器并且将模型设置为我的'Post'表时，自动生成的视图）

@model IEnumerable<Forum6.Models.Post>

@{
    ViewBag.Title = "ShowPost";
}
<table>
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.topicid)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.date)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.text)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.userid)
        </th>
        <th></th>
    </tr>

@foreach (var item in Model) {
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.Topics.name)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.date)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.text)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Users.username)
        </td>
        <td>
            @Html.ActionLink("Edit", "Edit", new { id=item.postid }) |
            @Html.ActionLink("Details", "Details", new { id=item.postid }) |
            @Html.ActionLink("Delete", "Delete", new { id=item.postid })
        </td>
    </tr>
} @* End loop *@

@* My Partial view *@
    <div id="panel">@Html.Partial("_CreatePost", new Forum6.Models.Post())</div>
        <br />

以下是我的部分视图“_CreatePost”中的代码

@model Forum6.Models.Post

@{
    ViewBag.Title = "CreatePost";
}

<h2>CreatePost</h2>

@using (Html.BeginForm()) {
    @Html.ValidationSummary(true)

    <fieldset>
        <legend>Post</legend>

        <div class="editor-label">
            @Html.LabelFor(model => model.date)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.date)
            @Html.ValidationMessageFor(model => model.date)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.text)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.text)
            @Html.ValidationMessageFor(model => model.text)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.userid)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.userid)
            @Html.ValidationMessageFor(model => model.userid)
        </div>

        <p>
            <input type="submit" value="AddData" />
        </p>
    </fieldset>
}

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

以下是该视图的屏幕截图

编辑： HomeController中的ShowPost：

public ActionResult ShowPost(int id = 0)
    {
        // 19.03.13
        var posts = (from p in db.Post
                     where p.topicid == id
                     select p);
        ViewBag.currentTopic = id;

        return View(posts);

    }

在HomeController中创建Post方法

 public ActionResult CreatePost(int id = 0)
        {
            ViewBag.topicid = new SelectList(db.Topics, "topicid", "name");
            ViewBag.userid = new SelectList(db.Users, "userid", "username");
            ViewBag.currentTopic = id;
            return View();
        }



        [HttpPost]
        public ActionResult CreatePost(Post post, int id = 0)
        {
            // Set TopicId and Date
            post.topicid = id;
            //08.04.2013
            post.date = DateTime.Now;

            if (ModelState.IsValid)
            {   
                db.Post.Add(post);
                db.SaveChanges();
                return RedirectToAction("ShowPost", new { id = post.topicid });
            }

            ViewBag.topicid = new SelectList(db.Topics, "topicid", "name", post.topicid);
            ViewBag.userid = new SelectList(db.Users, "userid", "username", post.userid);
            return View(post);
        }

单击“AddData”时，字段清除，但不添加任何数据。我不知道从哪里开始。

谁能看到我出错的地方？