只允许Jpg和Jpeg文件。
只允许Jpg和Jpeg文件。
提问于 2013-12-03 08:59:49
我只需要上传.Jpg和.Jpeg文件，但是在上传的同时也允许.gif
下面是带有验证的文件上传控件：
<td align="left" colspan="3">
<asp:FileUpload ID="fuAttachment1" runat="server" />
<asp:RegularExpressionValidator ID="revFile1" runat="server" ControlToValidate="fuAttachment1"
Enabled="true" ErrorMessage="Invalid File. Please select valid file." ForeColor="Red"
ValidationExpression="^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+(.jpg|.JPG|.jpeg|.JPEG)$">*
</asp:RegularExpressionValidator>
</td> </tr>回答 1
Stack Overflow用户
回答已采纳
发布于 2013-12-03 09:05:15
尝尝这个
^.+\.(?:(?:[jJ][pP][eE][gG])|(?:[jJ][pP][gG]))$更多描述
^ = beginning of string
.+ = at least one character (any character)
\. = dot ('.')
(?:pattern) = match the pattern without storing the match)
[dD] = any character in the set ('d' or 'D')
[xX]? = any character in the set or none
('x' may be missing so 'doc' or 'docx' are both accepted)
| = either the previous or the next pattern
$ = end of matched string您也可以检查这里的大梁
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/20346715
复制相关文章
相似问题
腾讯云开发者
