解决方案 »

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    <asp:RegularExpressionValidator ID="revfileUploadImage" SetFocusOnError="true" runat="server" display="Dynamic" ControlToValidate="UploadImage"  ValidationExpression="^.*\.(JPG|jpg|Jpg|gif|GIF|bmp|BMP|png|PNG)$">非正确图片格式</asp:RegularExpressionValidator>
      

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    <asp:RegularExpressionValidator ID="revfileUploadImage" SetFocusOnError="true" runat="server" display="Dynamic" ControlToValidate="UploadImage"  ValidationExpression="^.*\.(JPG|jpg|Jpg|gif|GIF|bmp|BMP|png|PNG)$">非正确图片格式</asp:RegularExpressionValidator>
    额,我看看,谢了   好像占时不用这么麻烦了 (留着研究研究)   感谢