(开发篇) 名称验证~ 检测FileUpload上传的空间名称

<asp:FileUpload ID="addFileUpload" runat="server" />
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="addFileUpload" 
 ErrorMessage="必须是 jpg或者gif文件" ValidationExpression="^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))(.jpg|.JPG|.gif|.GIF)$">
</asp:RegularExpressionValidator>

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