problam with CommandArgument

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ASP.NET4

hi im use The following code for get value datagrid

but each time only show one record
Previous

Click on a gridview btn when we have not add new record my previous shows

<asp:ImageButton ID="IBaddbasket" runat="server" Height="33px"
                               text=""
                              CommandArgument= '<%# Eval("id") + "," + Eval("FTitleEn") + "," + Eval("FTitleFa") %>'
                              ImageUrl="~/pic/addbasket.jpg"  CausesValidation="false"    '> onclick="IBaddbasket_Click" />

protected void IBaddbasket_Click(object sender, ImageClickEventArgs e)
    {
          ArrayList items = (ArrayList)Session["mycart"];
        CShoppingCartItem item = new CShoppingCartItem();
        ImageButton btn = (ImageButton)sender;
        string[] CommandArgument = btn.CommandArgument.Split(',');
        idbookbuy = Convert.ToInt32(CommandArgument[0]);
        txtnamee = CommandArgument[1];
        txtName = CommandArgument[2];
}