Onclick on linkbutton as for selected imagebutton

<asp:datalist id="DataList1" runat="server" datakeyfield="WomenDressID" datasourceid="SqlDataSource2" repeatdirection="Horizontal" repeatcolumns="4" xmlns:asp="#unknown">
              <itemtemplate>
                  <div>
                  <li style="list-style:none"> 
                     <asp:imagebutton id="ImageButton1" runat="server" onclientclick="return false" commandname="click" commandargument="<%# Eval("WomenDressID") %>" src="<%#Eval("picUrl","images/product/{0}") %>" width="50" height="50" cssclass="imgColor" />
                </li> 
                </div>
                   </itemtemplate>
            </asp:datalist>
                
             
         <asp:sqldatasource id="SqlDataSource2" runat="server" connectionstring="<%$ ConnectionStrings:ClothingShopConnection %>" selectcommand="SELECT top 4 * FROM [WomenDress] WHERE ([productName] = @productName)" xmlns:asp="#unknown">
          <SelectParameters>
                <asp:querystringparameter name="productName" querystringfield="Name" type="String" />
            </SelectParameters>
          </asp:sqldatasource>

<asp:datalist id="DataList2" runat="server" datasourceid="SqlDataSource3" onitemcommand="DataList2_ItemCommand" xmlns:asp="#unknown">
              <itemtemplate>
                  <div style="width:200px;">
                     <div class="mainPrice">
                      <asp:label id="Label2" runat="server" text="قیمت اصلی:"></asp:label>
                         </div>
                     <div class="valuePrice"> 
                      <asp:label id="Label4" runat="server" text="<%#Eval(" price=")%>" cssclass="priceDecor"></asp:label>
                         </div>
                     </div>
                     <div style="width:200px;">
                     <div class="mainPrice">
                      <asp:label id="Label3" runat="server" text="قیمت با تخفیف:"></asp:label>
                         </div>
                     <div class="valuePrice"> 
                      <asp:label id="Label5" runat="server" text="<%#Eval(" withdiscount=")%>"></asp:label>
                         </div>
                      </div>
                  <div class="wrapBasket">
                      <asp:linkbutton id="LinkButton1" runat="server" cssclass="btnBasket" commandname="linkClick">افزودن به سبد خرید</asp:linkbutton>
                  </div>
                  </itemtemplate>
                </asp:datalist>
 <asp:SqlDataSource ID="SqlDataSource3" runat="server" ConnectionString="<%$ ConnectionStrings:ClothingShopConnection %>" SelectCommand="SELECT top 1 * FROM [WomenDress] WHERE ([productName] = @productName)">
                    <SelectParameters>
                     <asp:QueryStringParameter Name="productName" QueryStringField="Name" Type="String" />
                </SelectParameters>
                </asp:SqlDataSource>

protected void DataList2_ItemCommand(object source, DataListCommandEventArgs e)
    {
        if(e.CommandName == "linkClick")
        {
            Int64 ProductID =
            string script = "Redirect();";
            ScriptManager.RegisterStartupScript(this, this.GetType(), "Redirect", script, true);
            ShoppingCartAccess.AddItem(ShoppingCartAccess.ShoppingCartId, ProductID);
        }
    }

public class ShoppingCartAccess
    {
        public ShoppingCartAccess()
        {
            //
            // TODO: Add constructor logic here
            //
        }
 
        public static string ShoppingCartId
        {
            get
            {
                HttpContext context = HttpContext.Current;
                string cartId = "";
                object cartIdSession = context.Session["BalloonShop_CartID"];
                if (cartIdSession != null)
                    cartId = cartIdSession.ToString();
                if (cartId != "")
                    return cartId;
                else
                {
                    if (context.Request.Cookies["BalloonShop_CartID"] != null)
                    {
                        cartId = context.Request.Cookies["BalloonShop_CartID"].Value;
                        context.Session["BalloonShop_CartID"] = cartId;
                        return cartId;
                    }
                    else
                    {
cartId = Guid.NewGuid().ToString();
                        HttpCookie cookie = new HttpCookie("BalloonShop_CartID", cartId.ToString());
                        int howManyDays = BalloonShopConfiguration.cartPersistDays;
                        DateTime currentDate = DateTime.Now;
                        TimeSpan timespan = new TimeSpan(howManyDays, 0, 0, 0);
                        DateTime expirationDate = currentDate.Add(timespan);
                        cookie.Expires = expirationDate;
                        context.Response.Cookies.Add(cookie);
                        context.Session["BalloonShop_CartID"] = cartId;
                        return cartId.ToString();
 
                    }
                }
 
            }
        }
 
        public static bool ExecuteSP(string SpName, List<sqlparameter> SPParameters)
        {
            string CS = ConfigurationManager.ConnectionStrings["ClothingShopConnection"].ConnectionString;
            using (SqlConnection con = new SqlConnection(CS))
            {
                SqlCommand cmd = new SqlCommand(SpName, con);
                cmd.CommandType = CommandType.StoredProcedure;
 
                foreach (SqlParameter parameter in SPParameters)
                {
                    cmd.Parameters.Add(parameter);
                }
                con.Open();
                return Convert.ToBoolean(cmd.ExecuteScalar());
            }
        }
 
        public static void AddItem(string cartNum, Int64 proID)
        {
            List<sqlparameter> paramlist = new List<sqlparameter>()
            {
                new SqlParameter()
                {
                    ParameterName="@cartID",
                    Value=cartNum
                },
                 
                new SqlParameter()
                {
                    ParameterName="@productId",
                    Value=proID
                }
         };
            ExecuteSP("ShoppingAddItem", paramlist);
 
        }
     }
}
</sqlparameter>