Web Forms :: Fileupload Validation In Image File Only?

Nov 19, 2010

i want to upload particular image file in asp.net and i m using regularexpressionvalidation but there is some error occurs so please help me.. i m using this syntex..

<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="FileUpload1"
ErrorMessage="Only .jpg,.gif,.png files are allowed..." ValidationExpression="[^.].jpg$"></asp:RegularExpressionValidator>

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[code]....

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[code].....

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[Code]....

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VB Code-

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[Code]....

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[code]...

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