文件上传验证-^(([[a-zA-Z] :) |(\\ {2} \ w +)\ $?)(\\(\ w [\ w].*))(.jpg | .JPG | .gif | .GIF)$ [英] File Upload validation - ^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))(.jpg|.JPG|.gif|.GIF)$

问题描述

我对此表达式使用了正则表达式控制
"^(([[a-zA-Z] :) |(\\ {2} \ w +)\ $?)(\\(\ w [\ w].*))(.jpg | .JPG | .gif | .GIF)$"来验证fileuploader来检查文件是否为图像文件，或者它不起作用
如果您还有其他代码来验证用户上传的特定文件，则请尽快向我发送回复.

感谢回复

-Hiren Bhalsod

i used regular expression contol with this Expression
"^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))(.jpg|.JPG|.gif|.GIF)$" to validate fileuploader for check the file is image file or but it''s not work
if u have another code to valid a particular file uploded by user then plz send me ans as soon as possible.

Thanx for reply

- Hiren Bhalsod

推荐答案

?)(\\(\ w [\ w].*))(.jpg | .JPG | .gif | .GIF)

?)(\\(\w[\w].*))(.jpg|.JPG|.gif|.GIF)

来验证fileuploader来检查文件是否为图像文件，或者它不起作用
如果您还有其他代码来验证用户上传的特定文件，则请尽快向我发送回复.

感谢回复

-Hiren Bhalsod

" to validate fileuploader for check the file is image file or but it''s not work
if u have another code to valid a particular file uploded by user then plz send me ans as soon as possible.

Thanx for reply

- Hiren Bhalsod

也许您需要学习正则表达式，而不是从网上随机获取内容?当然，这将测试文件是否具有特定扩展名，而不是文件是否恰好是图像文件.那是您只能在后面的代码中进行测试的内容.

Perhaps you need to learn regex instead of grabbing stuff at random off the web ? Of course, this will test if a file has a particular extension and not if it happens to be an image file or not. That is something you can only test in your code behind.

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