提交表单时，空模型在 MVC 中传递给控制器

Question

我正在使用 MVC4 应用程序，并且有一个控制器允许用户输入一些数据。问题是我在从表单返回的所有属性中都得到了空值。我正在使用强类型模型，并且我没有看到任何名称冲突，正如少数 post 中关于传递空模型所建议的那样。这是我的模特

public class NewsItemView
{

    [Required]
    public string NewsTitle;

    public string NewsAuthor;

    public string NewsSummary;

    public string NewsDescription;

    public bool NewsAllowComments;

    [Required]
    public string NewsContent;

    public string NewsSourceName;
}

控制器操作（获取）

    [HttpGet]
    public ActionResult Create()
    {
        NewsItemView nv = new NewsItemView();
        return View(nv);
    }

查看：

@model NewsItemView

@using (Html.BeginForm("Create", "Service", FormMethod.Post, new { @id = "NewsForm" }))
{
@Html.LabelFor(model => model.NewsTitle)
@Html.EditorFor(model => model.NewsTitle)
<br />
@Html.LabelFor(model => model.NewsAuthor)
@Html.EditorFor(model => model.NewsAuthor)
<br />
@Html.LabelFor(model => model.NewsAllowComments)
@Html.EditorFor(model => model.NewsAllowComments)
<br />
@Html.LabelFor(model => model.NewsSummary)
@Html.EditorFor(model => model.NewsSummary)
<br />
@Html.LabelFor(model => model.NewsDescription)
@Html.EditorFor(model => model.NewsDescription)
<br />
@Html.LabelFor(model => model.NewsContent)
@Html.EditorFor(model => model.NewsContent)
<br />
@Html.LabelFor(model => model.NewsSourceName)
@Html.EditorFor(model => model.NewsSourceName)

<br />

<button type="submit" id="submitBtn">Create News</button>

}

控制器操作(post)

    [HttpPost]
    public ActionResult Create(NewsItemView newsModel)
    {
     //my code here
    }

如果我使用 FormsCollection，我可以使用索引提取值，知道为什么强类型模型不起作用吗？

Answer 1

我已经在我的环境中重现了这个问题，我为修复它所做的一切只是将模型字段更新为如下属性

public class NewsItemViewModel
{

    [Required]
    public string NewsTitle { get; set; }

    public string NewsAuthor { get; set; }

    public string NewsSummary { get; set; }

    public string NewsDescription { get; set; }

    public bool NewsAllowComments { get; set; }

    [Required]
    public string NewsContent { get; set; }

    public string NewsSourceName { get; set; }
}

提交表单时，空模型在 MVC 中传递给控制器

Null model passed in MVC to controller when form is submitted

c#

asp.net-mvc

model-binding