在ASP.net MVC追赶AJAX文件上传(HTML5) [英] Catching ajax file upload (html5) in ASP.net MVC
问题描述
在什么这里是哪里呢?
Ajax调用没有达到动作
What is wrong in here?
The ajax call is not reaching the action
服务器端:
[HttpPost]
public ActionResult UploadFile(long someID, HttpPostedFileBase myFile)
{
return "hello";
}
客户端HTML:
Client side html:
<form id="my-form" method="post" action="" enctype="multipart/form-data">
<input type="hidden" name="someID" value="156" />
<input type="file" name="myFile" />
</form>
客户端的JavaScript:
Client side javascript:
$.ajax({
async: true,
type: 'POST',
url: '/MyController/UploadFile/',
data: new FormData($('#my-form')),
success: function (data) {},
cache: false,
contentType: false,
processData: false
});
这种通过AJAX上传的应该是可能在某些浏览器。
This kind of upload via ajax should be possible in some browsers.
我得到这个服务器端错误: 参数字典包含非可空类型'System.Int64'参数'someID空条目(...)
I'm getting this serverside error: The parameters dictionary contains a null entry for parameter 'someID' of non-nullable type 'System.Int64' (...)
如果我改变行动UploadFile(),不带参数,Ajax调用进入动作,但我怎么恢复发布的数据?
If I change the action to UploadFile(), with no parameters, the ajax call enters the action, but then how do I recover the posted data?
推荐答案
好了,最后做这样的:
服务器端:
[HttpPost]
public ActionResult UploadFile(long someID)
{
var file = Request.Files[0];
return "hello";
}
客户端HTML:
Client side html:
<form method="post" action="">
<input type="hidden" id="someID" value="156" />
<input type="file" id="myFile" />
</form>
客户端的JavaScript:
Client side javascript:
var blah = new FormData();
blah.append("file", $("#myFile")[0].files[0]);
$.ajax({
async: true,
type: 'POST',
url: '/MyController/UploadFile/?someID='+ $("#someID").val(),
data: blah,
success: function (data) {},
cache: false,
contentType: false,
processData: false
});
正如你所看到的, HTML表单竟然没有necesary,无论是加密类型。 该someID事情是由URL通过,该文件被逮住的Request.Files
As you can see, the html form isn't even necesary, neither the enctype. The someID thing is passed by the URL and the file is catched in Request.Files
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