How pass different page values to check out page

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C#

.NET

.NET4

Hello

I am trying to make online shopping web-site. I have made page sherwani.aspx, it shows images on page. when ever any one click on images, it goes to check out page product.aspx. everything is working fine. but when i am creating another page saree.aspx then I have to create new check out page product2.aspx. i do not want to do that.

I wish that from any page of site, when ever user click on product, it goes to product.aspx page.
code of product page

 <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
            ConnectionString="connetion string"
            ProviderName="System.Data.SqlClient" 
            SelectCommand="SELECT [id],[ImagePath],[ImageName],[details] FROM [BestSherwani] WHERE ([id] = @id)">
            
            <SelectParameters>
                <asp:QueryStringParameter Name="id" QueryStringField="id" Type="Decimal" />
            </SelectParameters>
            
            </asp:SqlDataSource> 

     
        <asp:DataList ID="DataList1" runat="server" DataSourceID="SqlDataSource1">
            <ItemTemplate>
                <asp:Image ID="Image1" runat="server" Width="200px" Height="300" ImageUrl='<%# Eval("ImagePath", "~/admin/{0}") %>' /><br />


             <asp:Label ID="ImageUrlLabel" Font-Size="XX-Large" runat="server" ForeColor="Red" Text='<%# Eval("ImageName") %>' Visible="False"></asp:Label><br />
               <%-- <asp:Label ID="NameLabel" Font-Size="XX-Large" runat="server" ForeColor="Red" Text='<%# Eval("Name") %>'></asp:Label><br />
                <asp:Label ID="DescriptionLabel" Font-Size="XX-Large" runat="server" ForeColor="Red" Text='<%# Eval("Description") %>'></asp:Label><br />--%>
                <asp:Label ID="PriceLabel" Font-Size="XX-Large" runat="server" ForeColor="Red" Text='<%# Eval("details", "{0:##0.00}" ) %>'></asp:Label><br />--%>
                <br />
                <br />
            </ItemTemplate>
        </asp:DataList>

         <asp:Button ID="btnAdd" runat="server" OnClick="Button1_Click" Text="Add to Cart" /><br />
        <br />
         <asp:HyperLink ID="HyperLink1" runat="server" 
              NavigateUrl="~/admin/Best-sherwani.aspx">Return to Products Page</asp:HyperLink>


<asp:GridView ID="grdCart" runat="server" AutoGenerateColumns="False" DataKeyNames="ProductID" OnRowCancelingEdit="grdCart_RowCancelingEdit" OnRowDeleting="grdCart_RowDeleting" OnRowEditing="grdCart_RowEditing" OnRowUpdating="grdCart_RowUpdating">
    <Columns>
        <asp:TemplateField>
            <ItemTemplate>
                <asp:Image ID="Image1" runat="server" ImageUrl='<%# Eval("ImageUrl", "~/Images/thumb_{0}") %>' />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:BoundField DataField="ProductName" HeaderText="Product" ReadOnly="True" />
        <asp:BoundField DataField="Quantity" HeaderText="Quantity" />
        <asp:BoundField DataField="Price" DataFormatString="{0:c}" HeaderText="Price" ReadOnly="True" />
        <asp:BoundField DataField="SubTotal" DataFormatString="{0:c}" HeaderText="Total"
            ReadOnly="True" />
        <asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />
    </Columns>
    <EmptyDataTemplate>
        Your Shopping Cart is empty, add items
        <a href="Products.aspx">Add Products</a>
    </EmptyDataTemplate>
</asp:GridView>