I've tried both snippets below. Nothing. I've tried <%#, <%=, and <%. Nothing. So I'm stuck.
<div style="background-color:Gray; color:white; text-align:center; width:100%;">
<asp:HyperLink ID="HyperLink1" Target="_blank" NavigateUrl='<%= Server.HtmlEncode(String.Format("~/ShowHistory.aspx?section={0}&jobnumber={1}", "APQP Header", "101244")) %>' runat="server">Show Updated History</asp:HyperLink>
<asp:HyperLink Target="_blank" NavigateUrl="~/ShowDeletedHistory.aspx" ID="HyperLink2" runat="server">Show Deleted History</asp:HyperLink></div>
<br />
<div style="background-color:Gray; color:white; text-align:center; width:100%;">
<asp:HyperLink ID="HyperLink1" Target="_blank" NavigateUrl='<%= String.Format("~/ShowHistory.aspx?section={0}&jobnumber={1}", "APQP Header", "101244") %>' runat="server">Show Updated History</asp:HyperLink>
<asp:HyperLink Target="_blank" NavigateUrl="~/ShowDeletedHistory.aspx" ID="HyperLink2" runat="server">Show Deleted History</asp:HyperLink></div>
<br />