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hyperlink - Gridview Column Link to open in new tab only if linking to PDF

I have a gridview and one of the columns is a link to websites. Right now I have it set to a target of "_parent". This fine for website links, but I have links to PDF files. I want PDF file link to have a target of "_Blank". Is there a way I can do this?

        <AlternatingRowStyle BackColor="#DCDCDC" />
        <Columns>
            <asp:TemplateField HeaderText="Link" SortExpression="Link">
                <ItemTemplate>
                <asp:HyperLink NavigateUrl='<%# Eval("Link","{0}") %>' Visible='<%# (Eval("Link")==DBNull.Value ? false : true) %>' Text="Link" runat="server" Target="_parent" />
                </ItemTemplate>
            </asp:TemplateField>```
question from:https://stackoverflow.com/questions/65910574/gridview-column-link-to-open-in-new-tab-only-if-linking-to-pdf

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