复制代码 代码如下:<asp:RegularExpressionValidator id="FileUpLoadValidator" runat="server" ErrorMessage="Upload Jpegs and Gifs only." ValidationExpression="^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))(.jpg|.JPG|.gif|.GIF)$" ControlToValidate="FileUpload1"> </asp:RegularExpressionValidator> |