ajax.request,jquery - Request.IsAjaxRequest returns false - Stack Overflow

转载于 2021-08-05 23:19:18 发布

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在MVC项目中，作者遇到一个问题：他在表单提交时使用jQuery的AJAX处理函数，但控制器中的Request.IsAjaxRequest总是返回false。尽管AJAX调用正常执行并触发了MVC动作，但因为IsAjaxRequest的错误判断，导致返回了视图而不是预期的JSON结果。问题在于，即使使用了$.post，IsAjaxRequest仍然不识别请求为AJAX请求。

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I have an MVC project in which I have a form with a submit button. I have added a jquery client-side handler that intercepts the form submit event. The javascript function calls the same MVC action that would have been called without the javascript.

$("form[action ='/List/CreateItem']").submit(

function() {

$.post($(this).attr("action"), $(this).serialize(), function(response) { $("#results").html(response); });

return false;

}

);

In the MVC action that is called, I test for Request.IsAjaxRequest to decide whether to return a view or a JSON result. My problem is that Request.IsAjaxRequest is returning false, even though I know the call is being made from the jquery function. (I know this because if I comment out the $.post line in the jquery function and just leave the return false line, nothing happens. If I un-comment the line, the action gets executed - but it returns the view because IsAjaxRequest is false.)

Should this line cause Request.IsAjaxRequest to be true?