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ASP.NET MVC4模型没有绑定(ASP.NET MVC4 Model Not Binding)

我有一个非常简单的ASP.NET MVC4页面。 它为CustomerModel呈现一个编辑表单。 表单显示正确,但是当我点击编辑并回传时,模型没有被绑定。 相反,CustomerModel的所有属性都保留其默认值。 请注意,正在调用正确的控制器方法,因此不是问题。

我可以看到与模型属性(Id,Name,Description)具有匹配名称的表单值,但该模型没有设置它们。

想法?

这里是模型:

public class CustomerModel
{
    [Required] 
    public Guid Id;

    [Required]
    public string Name;

    [Required]
    public string Description;
}

以下是相关的控制器方法:

    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Edit(CustomerModel customerModel)
    {
        if (ModelState.IsValid)
        {
            //...Do stuff

            return RedirectToAction("Index");
        }

        return View(customerModel);
    }

最后,这是一个带有填充值的表单集合的屏幕截图:

在这里输入图像描述


I have a very simple ASP.NET MVC4 page. It's rendering an edit form for the CustomerModel. The form displays correctly, but when I hit edit and post back, the model isn't being bound. Instead, all the properties of the CustomerModel are left at their defaults. Note that the correct controller method is being invoked, so that's not the issue.

I can see the form values with matching names to the model properties (Id, Name, Description), but the model doesn't have them set.

Ideas?

Here is the model:

public class CustomerModel
{
    [Required] 
    public Guid Id;

    [Required]
    public string Name;

    [Required]
    public string Description;
}

And here is the relevant controller method:

    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Edit(CustomerModel customerModel)
    {
        if (ModelState.IsValid)
        {
            //...Do stuff

            return RedirectToAction("Index");
        }

        return View(customerModel);
    }

Finally, here is a screen shot of the form collection with the populated values:

enter image description here


原文:https://stackoverflow.com/questions/14329006
更新时间:2020-02-28 16:05

最满意答案

您的模型有公共字段但不包含公共属性,这些不一样。

改成:

public class CustomerModel
{
    [Required] 
    public Guid Id {get; set;}

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

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

默认的MVC模型绑定器将使用属性,而不是字段。

更多关于这里 - http://rightbrainleft.net/2011/02/default-mvc-model-binder-doesnt-like-fields/


Your model has public fields but not public properties, these are not the same.

Change to:

public class CustomerModel
{
    [Required] 
    public Guid Id {get; set;}

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

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

The default MVC model binder will work with properties, not fields.

More about this here - http://rightbrainleft.net/2011/02/default-mvc-model-binder-doesnt-like-fields/

2013-01-15

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