I send id of my class object from one page to second this way
NavigateUrl='<%# "ItemDetail.aspx?itemId=" + (string)Eval("Id") %>'
Then I get the object with ObjectDataSource and function this way
<asp:ObjectDataSource ID="ObjectDataSourceItem" runat="server" SelectMethod="GetItem"
TypeName="Catalog">
<SelectParameters>
<asp:QueryStringParameter Name="itemId" QueryStringField="itemId" Type="string" DefaultValue="" />
</SelectParameters>
</asp:ObjectDataSource>
So how to use this item in my new page code
this.ObjectDataSourceItem.?????