How do I pass Hidden Variable to javacript function on GridView hyperlink click.
Below is the code used
<asp:GridView ID="gridMicroscopicCode" runat="server" ...
<ItemTemplate>
<table id="Table2" cellpadding="0" style="border-width: 0px; width: 100%;" class="tableBorder" runat="server">
<tr class="botborder1">
<td style="width: 25%;">
<input id="Hidden1" runat="server" value='<%# Bind("preferenceid")%>' type="hidden" />
<asp:HyperLink ID="hypMicroscopicPopUpEdit" runat="server"
Target="_self" NavigateUrl="javascript: EncryptDataFunc('VAAddEditMicroscopic.aspx?editoption=yes&queryprefid=' + <%# Hidden1.value %>);">
</asp:HyperLink>