Dynamically display data from other Table inside Repeater ItemTemplate on Button click in ASP.Net

 i'm using a repeater with an hyperlink and i'm displaying some data from a table x and when the link is clicked i want to add some from the displayed data in another table y 

I used a datasource for selecting information , should i use another datasource for the insert command or what to do .. Any Help will be appreciated .. here's my code .. but it doesn't display a thing P.S: I'm new on this ^^

 

<asp:Repeater
id="rptproduct"
DataSourceID="SqlDataSource1"
Runat="server">

<ItemTemplate>
<asp:label
id="labCode"
Text='<%#Eval("N_produit")%>'
Runat="server" />

<asp:HyperLink
id="lnkMenu"
Text='<%#Eval("N_produit")%>'
NavigateUrl='<%#Eval("N_produit","WebForm3.aspx?N_produit={0}")%>'
Runat="server" /><br />

</ItemTemplate>

</asp:Repeater>
<br />

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:parapharmacieConnectionString %>" 
ProviderName="<%$ ConnectionStrings:parapharmacieConnectionString %>"
SelectCommand="SELECT N_produit FROM produit where N_produit=@N_produit"
InsertCommand="INSERT INTO panier_produit(N_panier, N_produit, quantite) VALUES (1,@N_produit, 1)" >
<InsertParameters>
<asp:Parameter Name="N_produit" />
</InsertParameters>
<selectParameters>
<asp:QueryStringParameter 
Name="N_produit" 
QueryStringField="N_produit" />
</selectParameters>



</asp:SqlDataSource>