Encrypting the url in hyperlinkfield or in Anchar

i am trying the fllowing codes

<a href='Default2.aspx?CID=<%#QueryStringModule.EncryptData(Convert.ToString(Eval("45")))%>'>Edit</a>
       <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%#"Default2.aspx?CID="QueryStringModule.EncryptData(eval("45"))%>' Text="Read Details"></asp:HyperLink>
both are show the some error.
Actualy i wants to encript the query string URL on Bar of the web browser. but the should be hyperlink or anchar

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