.net - Upload Only Excel File Using RegularExpressionValidator?
Jul 29, 2010
i need to control Only ExcelFile uploading with RegularExpressionValidator How can i do that? i need to write a regex pattern in ValidationExpression...
<h3>FileUpload Test</h3>
<div>
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button id="UploadBtn" Text="Upload File" OnClick="UploadBtn_Click" runat="server" Width="105px" />
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>
<asp:RegularExpressionValidator
id="FileUpLoadValidator" runat="server"
ErrorMessage="Upload Excel only."
ValidationExpression="([a-z]w*)(.xlsx|.xlsm|.xls)$"
ControlToValidate="FileUpload1">
</asp:RegularExpressionValidator>
</div>
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