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Home/ Questions/Q 762439
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Editorial Team
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Editorial Team
Asked: May 14, 20262026-05-14T15:57:30+00:00 2026-05-14T15:57:30+00:00

ASP.Net FileUpload not working in google chrome.It shows validation error,even after choosing right file

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ASP.Net FileUpload not working in google chrome.It shows validation error,even after choosing right file type.Any solution ?

Here is a code :

 <asp:FileUpload ID="FU1" runat="server"  />
    <asp:RegularExpressionValidator 
    id="FileUpLoadValidator" runat="server" 
    ErrorMessage="Upload jpg and gif only." 
    ValidationExpression="^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))(.jpg|.JPG|.gif|.GIF)$" 
    ControlToValidate="FU1">
    </asp:RegularExpressionValidator>
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  1. Editorial Team
    Editorial Team
    2026-05-14T15:57:30+00:00Added an answer on May 14, 2026 at 3:57 pm

    Do you still get the error when you use a more open regex?

    ValidationExpression="^.+\.((jpg)|(JPG))$"
    
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