如何使用ajax.actionlink获取formcollection

问题描述

我有一个带有以下代码的控制器:

I have a controller with the codes like this:

[AcceptVerbs("POST")]
public ActionResult Create(FormCollection collection)
{
    //why is that the collection is null?
}

我正在使用ajax.actionlink调用此操作.

I am calling this action using the ajax.actionlink.

我的问题是集合为null，这与我是否使用commit(input)按钮不同表单集合具有值.

my problem is the collection is null, unlike if i use the submit(input) buttonthe formcollection has values.

推荐答案

FormCollection 具有与之关联的默认活页夹，该活页夹始终会初始化集合，并且永远不要获取null.与使用表单提交按钮相比，使用Ajax.ActionLink时您很可能有一个空集合.这是因为ActionLink方法在执行AJAX请求时不会发布任何表单值.

FormCollection has a default binder associated with it which always initializes the collection and you should never get null. It is more likely that you have an empty collection when using Ajax.ActionLink in contrast to when using a form submit button. This is because the ActionLink method doesn't POST any form values when it performs the AJAX request.

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