protected void btnSaveReview_Click(object sender, EventArgs e) { string response = ""; if (Convert.ToString(Session["UserId"]) == "" && Session["UserId"] == null) { Session["Source"] = "Review"; Session["Ratings"] = tbRating.Text; Session["Review"] = tbReview.Text; ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), "text", "alert('Login first.');window.location ='Login.aspx'", true); } else { Review review = new Review(); review.ProductId = Convert.ToInt32(Session["ProductId"]); review.UserId = Convert.ToInt32(Session["UserId"]); review.Star = Convert.ToInt32(tbRating.Text); review.Review1 = tbReview.Text; review.Date = DateTime.Now; response = productServices.AddReview(review); if (response == "Success") { ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), "text", "showAlert('Success','Review is added.')", true); Clear(); DisplayDetails(Convert.ToInt32(Session["ProductId"])); } else { ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), "text", "showAlert('Error!','" + response + "')", true); } } }