在MVC5中以局部视图提交表单时模型为空
[英] Model is null while submitting the form in partial view in MVC5
本文介绍了在MVC5中以局部视图提交表单时模型为空的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我只是想学习 MVC 并面临一些问题.当我提交我的部分视图时，我在 Create Method 内的模型 博客 中得到空值.
我做错了什么，正确的方法是什么?
查看(Index.cshtml)
@model IEnumerable@{ViewBag.Title = "索引";}<h2>索引</h2><p>@Html.ActionLink("新建", "创建")</p><table class="table"><tr><第>样本</th><th>URL</th><th>姓名</th></tr>@foreach(模型中的变量项目){<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><td>@item.URL</td><td>@项目名称</td></tr>}@Html.Partial("_CreateBlog", new Samples.Controllers.Blog())
部分视图(_CreateBlog.cshtml)
@model Samples.Controllers.Blog@using (Html.BeginForm("Create","Sample",FormMethod.Post)){@Html.AntiForgeryToken()<div class="form-horizontal"><h4>博客</h4><小时/>@Html.ValidationSummary(true, "", new { @class = "text-danger" })<div class="row">@Html.LabelFor(model => model.URL)@Html.EditorFor(model => model.URL)
<div class="row">@Html.LabelFor(model => model.Name)@Html.EditorFor(model => model.Name)
<div class="form-group"><div class="col-md-offset-2 col-md-10"><input type="submit" value="Create" class="btn btn-default"/>
}<div>@Html.ActionLink("返回列表", "索引")
SampleController.cs
使用系统；使用 System.Collections.Generic;使用 System.Linq；使用 System.Web；使用 System.Web.Mvc;命名空间 Samples.Controllers{公共类 SampleController :控制器{列表<博客>lstBlogs;公共示例控制器(){lstBlogs = 新列表<博客>{新博客{ Name="Domnic", URL="www.google.com"},新博客{ Name="Tom", URL="www.YAHOO.com"},新博客{ Name="Cat", URL="www.facebook.com"},新博客{ Name="Bob", URL="www.twitter.com"}};}//获取:样本公共 ActionResult 索引(){返回视图(lstBlogs)；}公共 ActionResult IndexWithDynamicView(){返回视图(lstBlogs)；}[HttpPost]公共无效创建(博客博客){}}公开课博客{公共字符串名称；公共字符串 URL；}}
解决方案
你的类 Blog 只包含字段，不包含属性，所以 DefaultModelBinder 不能设置他们的价值观.更改它添加 getter/setter
公开课博客{公共字符串名称 { 获取；放;}公共字符串 URL { 获取；放;}}
I am just trying to learn MVC and facing some issues.When I am submitting my partial view, I am getting null in Model Blog inside Create Method.
What I am doing wrong and what is the right approach?
View(Index.cshtml)
@model IEnumerable<Samples.Controllers.Blog>
@{
ViewBag.Title = "Index";
}
<h2>Index</h2>
<p>
@Html.ActionLink("Create New", "Create")
</p>
<table class="table">
<tr>
<th>Sample</th>
<th>URL</th>
<th>Name</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>
<td>
@item.URL
</td>
<td>
@item.Name
</td>
</tr>
}
</table>
@Html.Partial("_CreateBlog", new Samples.Controllers.Blog())
Partial View(_CreateBlog.cshtml)
@model Samples.Controllers.Blog
@using (Html.BeginForm("Create","Sample",FormMethod.Post))
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
<h4>Blog</h4>
<hr />
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="row">
@Html.LabelFor(model => model.URL)
@Html.EditorFor(model => model.URL)
</div>
<div class="row">
@Html.LabelFor(model => model.Name)
@Html.EditorFor(model => model.Name)
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Create" class="btn btn-default" />
</div>
</div>
</div>
}
<div>
@Html.ActionLink("Back to List", "Index")
</div>
SampleController.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace Samples.Controllers
{
public class SampleController : Controller
{
List<Blog> lstBlogs;
public SampleController()
{
lstBlogs = new List<Blog>
{
new Blog{ Name="Domnic", URL= "www.google.com"},
new Blog{ Name="Tom", URL= "www.YAHOO.com"},
new Blog{ Name="Cat", URL= "www.facebook.com"},
new Blog{ Name="Bob", URL= "www.twitter.com"}
};
}
// GET: Sample
public ActionResult Index()
{
return View(lstBlogs);
}
public ActionResult IndexWithDynamicView()
{
return View(lstBlogs);
}
[HttpPost]
public void Create(Blog blog)
{
}
}
public class Blog
{
public string Name;
public string URL;
}
}
解决方案
Your class Blog only contains fields, not properties so the DefaultModelBinder cannot set their values. Change it add getters/setters
public class Blog
{
public string Name { get; set; }
public string URL { get; set; }
}
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