MVC模型未传递给控制器 [英] MVC Model not passed to controller

问题描述

我几乎不好意思我无法使它正常工作.我有一个这样的模型:

Am almost embarassed that I can't get this to work. I have a model like this:

public class Test
{
  public string Test1 {get; set; }
  public string Test2 {get; set; }
}

我有一个剃刀视图，可以正确显示Test1和Test2. Test1的显示如下:

I have a razor view which correctly displays both Test1 and Test2. Test1 is displayed just like this:

@Html.LabelFor(model => mode.Test1)
@Html.Test1

Test2的显示如下:

Test2 is displayed like this:

@Html.LabelFor(model => model.Test2)
@Html.EditorFor(model => model.Test2)

即我只想显示Test1，但希望用户能够编辑Test2.

i.e. I just want to display Test1, but want the user to be able to edit Test2.

这些在表格内:

@using(Hmtl.BeginForm("Action1", "Controller1", FormMethod.Post)

在Controller1.Action1中，它接收模型:

In Controller1.Action1 it receives the model:

public ActionResult Action1(Test m)
{

}

，但是在这里m.Test1为空，m.Test2已正确填充. m.test1正确显示在视图中.

but in here m.Test1 is null, m.Test2 is correctly populated. m.test1 is correctly displayed in the view.

am confused.com

Am confused.com

预先感谢

雷

推荐答案

模型绑定程序仅看到从HTML表单发布的表单值，这些表单值仅来自表单元素.这不会生成这样的元素:

The model binder only sees the form values which are posted from the HTML form, which are only from form elements. This doesn't generate such an element:

@Html.Test1

这可能会显示视图绑定的值(真的吗?我从未见过那样做过，也许应该是@Model.Test1?)，但是需要某种HTML表单元素将值发布回服务器. (input，select，hidden等)

That may display the value to which the view is bound (does it really? I've never seen it done like that, maybe that should be @Model.Test1?) but there needs to be an HTML form element of some kind to post a value back to the server. (input, select, hidden, etc.)

为了有趣，请看一下浏览器中生成的HTML.它们只是带有值的标准表单元素，没有任何东西可以将整个模型存储在任何地方.模型绑定程序只是尝试根据从HTML表单发送的名称/值对来智能地重建模型.

For fun, take a look at the HTML generated in the browser. They're just standard form elements with values, there's nothing storing the whole model anywhere. The model binder just tries to intelligently re-construct a model based on the name/value pairs sent from the HTML form.

也尝试向表单添加隐藏字段:

Try adding a hidden field to the form as well:

@Html.LabelFor(model => model.Test1)
@Model.Test1
@Html.HiddenFor(model => model.Test1)

这应该在具有该值的表单中创建一个input type="hidden"，将值发布到控制器操作时将包括该值.

This should create an input type="hidden" in the form with that value, which would be included when posting the values to the controller action.

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