如何使用jQuery调用MVC ChildActionOnly Controller Action

I have a DropDownListFor that is in a Partial View. On change it fires a jQuery script, but Fiddler shows an HTTP 500 Error:

我有一个部分视图中的DropDownListFor。在更改时它会触发jQuery脚本，但Fiddler显示HTTP 500错误：

The action 'LanguageListPartial' is accessible only by a child request.

The calling script:

调用脚本：

<script type="text/javascript">
    $(function () {
        $('#SelectedLanguage').on('change', function () {
            var culture = $(this).val();
            $('#test').load("/Account/LanguageListPartial/" + culture, function () {
                location.reload(true);
            });
        });
    });
</script>

I wouldn't want that Controller Action called directly so it is decorated with [ChildActionOnly]. I realize that it's being called directly with the jQuery .load().

我不希望直接调用Controller Action，因此它使用[ChildActionOnly]进行修饰。我意识到它是用jQuery .load（）直接调用的。

Is there a way to keep the ChildActionOnly restriction and still call it from jQuery with the .on('change' ...) event?

有没有办法保持ChildActionOnly限制，仍然使用.on（'change'...）事件从jQuery调用它？

2 个解决方案

#1

No, you cant do that. The whole point of the ChildActionOnly attribute is to prevent it being invoked as a result of a user request.

不，你不能这样做。 ChildActionOnly属性的重点是防止因用户请求而调用它。

#2

First : Create a Custom Attribute that supports both ChildActionOnly and Ajax Functionality:

第一步：创建一个支持ChildActionOnly和Ajax功能的自定义属性：

public class AjaxChildActionOnlyAttribute : ActionMethodSelectorAttribute
{
        public override bool IsValidForRequest(ControllerContext controllerContext, System.Reflection.MethodInfo methodInfo)
        {
            return controllerContext.RequestContext.HttpContext.Request.IsAjaxRequest() || controllerContext.IsChildAction;
        }
}

Then : Use above created attribute for your partial View:

然后：对部分视图使用以上创建的属性：

[AjaxChildActionOnly]
public PartialViewResult LanguageListPartial(string id)
{
  //Function Logic
}

#1