I'm running into an issue where I have a FileUpload control in an UpdatePanel. When I attempt to save changes and upload the file, no file is found. If I remove the UpdatePanel everything seems to work fine.
我遇到了一个问题，在UpdatePanel中有一个FileUpload控件。当我尝试保存更改并上传文件时，没有找到文件。如果我删除UpdatePanel，一切看起来都很好。
Any ideas why this might be happening? And is there a work-around?
你知道为什么会这样吗?有什么变通的办法吗?
1 个解决方案
#1
10
To upload a file you need to perform a full ASP.NET page postback, it does not operate over the partial postback method.
要上传文件，需要执行完整的ASP。NET页面回发，它不会对部分回发方法进行操作。
You'll need to register the button which "uploads" your file as a PostBackTrigger of the UpdatePanel's triggers.
您需要将“上传”文件的按钮注册为UpdatePanel触发器的PostBackTrigger。
There are lots of free (and non-free) AJAX file upload solutions, or you can easily create one, it's just a matter of putting your file upload control within an iframe and submitting the iframe page back to the server. It isn't really ajax, but it gives a visual impression of AJAX.
有很多免费的(和非免费的)AJAX文件上传解决方案，或者您可以轻松创建一个，只需将文件上传控件放在iframe中并将iframe页面提交回服务器即可。它不是真正的ajax，但它给人一种ajax的视觉印象。
#1
10
To upload a file you need to perform a full ASP.NET page postback, it does not operate over the partial postback method.
要上传文件，需要执行完整的ASP。NET页面回发，它不会对部分回发方法进行操作。
You'll need to register the button which "uploads" your file as a PostBackTrigger of the UpdatePanel's triggers.
您需要将“上传”文件的按钮注册为UpdatePanel触发器的PostBackTrigger。
There are lots of free (and non-free) AJAX file upload solutions, or you can easily create one, it's just a matter of putting your file upload control within an iframe and submitting the iframe page back to the server. It isn't really ajax, but it gives a visual impression of AJAX.
有很多免费的(和非免费的)AJAX文件上传解决方案，或者您可以轻松创建一个，只需将文件上传控件放在iframe中并将iframe页面提交回服务器即可。它不是真正的ajax，但它给人一种ajax的视觉印象。