绑定到强类型对象的ASP.NET MVC集合 [英] Binding to a Collection of Strongly-Typed Objects in ASP.NET MVC

问题描述

我有一个包含多个字段的数据类：

I have a data class that contains a number of fields:

public class Person
{
    public int id { get; set }
    public string Name { get; set; }
    public double Rate { get; set; }
    public int Type { get; set; }
}

如果我理解<一个href=\"http://www.hanselman.com/blog/ASPNETWireFormatForModelBindingToArraysListsCollectionsDictionaries.aspx\">Scott Hanselman的接受约束性减排对象数组的，我应该能够创建HTML渲染，看起来像这样的表单视图：

If I understand Scott Hanselman's take on binding arrays of objects, I should be able to create a form view that renders HTML that looks like this:

<input name="Person[0].id" value="26" type="hidden" />
<input name="Person[0].Name" value="Tom Smith" type="text" />
<input name="Person[0].Rate" value="40.0" type="text" />
<select name="Person[0].Type">
    <option selected="selected" value="1">Full Time</option>
    <option value="2">Part Time</option>
</select>

<input name="Person[1].id" value="33" type="hidden" />
<input name="Person[1].Name" value="Fred Jones" type="text" />
<input name="Person[1].Rate" value="45.0" type="text" />
<select name="Person[1].Type">
    <option value="1">Full Time</option>
    <option selected="selected" value="2">Part Time</option>
</select>

我应该再能够捕捉到这个数据在我的控制器，看起来像这样的操作方法：

I should then be able to capture this data in my controller with an action method that looks like this:

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult People(Person[] array)
{
    // Do stuff with array
}

但它不工作。数组变量总是空。我间preT这为数据绑定不工作。但是，为什么？

But it doesn't work. The array variable is always null. I interpret this as the data binding is not working. But why?

推荐答案

您字段应该指定数组[0] .ID，数组[0]型号及...

Your fields should be named array[0].id, array[0].Type, ...

它们应具有阵列实例的名称，该阵列内的类型的不名称

They should have the name of the array instance, not the name of the Type inside the array.

另外，你可以改变的ActionController到的签名：
    人[]人

Alternatively you could change the signature of the actioncontroller to: Person[] Person

您明白了吧： - ）

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