在C#中,我怎么能知道从一个byte []文件类型? [英] In C#, how can I know the file type from a byte[]?
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问题描述
我从上传的文件填充的字节数组。但是,在code的另一部分,我需要知道从字节[]上传该文件类型,所以我可以使正确的内容类型到浏览器!
I have a byte array filled from a file uploaded. But, in another part of the code, I need to know this file type uploaded from the byte[] so I can render the correct content-type to browser!
谢谢!
推荐答案
不知道,但也许你应该调查了解幻数的。
Not sure, but maybe you should investigate about magic numbers.
更新:
阅读关于它,我不认为这是非常可靠的,但。
Update: Reading about it, I don't think it's very reliable though.
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