MVC3非序列指标和DefaultModelBinder [英] MVC3 Non-Sequential Indices and DefaultModelBinder

问题描述

这是真的，在MVC 3.0默认的模型绑定能够处理非顺序指数（适用于简单和复杂的模型类型）？我遇到这表明它应该职位，但在我的测试看来，它并没有。

Is it true that the default model binder in MVC 3.0 is capable of handling non-sequential indices (for both simple and complex model types)? I've come across posts that suggest it should, however in my tests it appears that it does NOT.

由于后回值：

items[0].Id = 10
items[0].Name = "Some Item"
items[1].Id = 3
items[1].Name = "Some Item"
items[4].Id = 6
items[4].Name = "Some Item"

和一个控制器方法：

public ActionResult(IList<MyItem> items) { ... }

加载的值只有项目0和1;第4项被忽略。

The only values that are loaded are items 0 and 1; item 4 is simply ignored.

我见过无数的解决方案，以生成定制指数（模型绑定到列表），但他们似乎都瞄准了MVC的previous版本，而且大多数是有点'重手'海事组织。

I've seen numerous solutions to generate custom indices (Model Binding to a List), however they all appear to targeting previous versions of MVC, and most are a bit 'heavy-handed' IMO.

我缺少的东西吗？

推荐答案

我有这个工作，你要记得添加一个索引通用输入隐藏在你引用的文章解释说：

I have this working, you have to remember to add a common indexing hidden input as explained in your referenced article:

使用隐藏的输入 NAME = Items.Index 是关键部分。

The hidden input with name = Items.Index is the key part

<input type="hidden" name="Items.Index" value="0" />
<input type="text" name="Items[0].Name" value="someValue1" />

<input type="hidden" name="Items.Index" value="1" />
<input type="text" name="Items[1].Name" value="someValue2" />

<input type="hidden" name="Items.Index" value="3" />
<input type="text" name="Items[3].Name" value="someValue3" />

<input type="hidden" name="Items.Index" value="4" />
<input type="text" name="Items[4].Name" value="someValue4" />

希望这有助于

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