非连续收集绑定 [英] Non-sequential collection binding
问题描述
什么是在MVC视图元素的动态创建的集绑定到MVC 4集,我知道previous版本的要求的元素看起来像这样的最佳方式:
What is the best way to bind a dynamically created collection of elements in an MVC view to a collection in MVC 4. I know previous versions have required that the elements look like this:
<input name="Categories[0].CategoryID" type="hidden" value="123" />
<input name="Categories[0].CategoryName" type="hidden" value="Music" />
<input name="Categories[1].CategoryID" type="hidden" value="456" />
<input name="Categories[1].CategoryName" type="hidden" value="Movies" />
但如果你是动态添加新的元素和删除它们,事情很快得到了序列pretty的。
But when you are dynamically adding new elements and removing them, things get out of sequence pretty quickly.
确实 MVC 4 添加绑定到一个非顺序采集的方式?
Does MVC 4 add a way to bind to a non-sequential collection?
推荐答案
支持非连续采集指标,因为MVC2你只需要拥有一个独立的隐藏字段,将与名的索引
模式: CollectionName.Index
:
Non sequential collection indices supported since MVC2 you just need to have a separate hidden field which will hold the index with the name
schema: CollectionName.Index
:
例如:
<input type="hidden" name="Categories.Index" value="3" />
<input name="Categories[3].CategoryID" type="hidden" value="123" />
<input name="Categories[3].CategoryName" type="hidden" value="Music" />
<input type="hidden" name="Categories.Index" value="1" />
<input name="Categories[1].CategoryID" type="hidden" value="456" />
<input name="Categories[1].CategoryName" type="hidden" value="Movies" />
您可以在这里找到有关主题的更多信息:模式结合一个列表
You can find more info about the topic here: Model Binding To A List
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