how to redirect to another page from gridview in asp net wit

Question

i am trying to redirect page using

<asp:TemplateField HeaderText="Ref_ID">
<ItemTemplate>
<%#Eval("Order_Ref_No") %>
</ItemTemplate>
<FooterTemplate >
<asp:TextBox ID="txtaddorderref" runat="server"></asp:TextBox>
</FooterTemplate>
</asp:TemplateField>

but Order_Ref_No is not fetched on another page ,if i used boundField ,then it working fine,,,,but i want to use itemtemplate field..

 

Please Guide...