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timothyclifford/FileExtensionRegularExpression.cs

Created March 18, 2012 03:22
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Regular expression file extension filter
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FileExtensionRegularExpression.cs
<asp:RegularExpressionValidator ID="regexFileUpload" runat="server" ControlToValidate="FileUploadControlID" ErrorMessage="Uploaded file should be .doc, .docx or .pdf files only" ValidationExpression="^.*\.(doc|DOC|docx|DOCX|pdf|PDF)$"></asp:RegularExpressionValidator>
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