protected void logInButton_Click(object sender, EventArgs e) { LogIn userLogIn = new LogIn(); userLogIn.CenterCode = centerCodeTextBox.Text; userLogIn.Password = passwordTextBox.Text; int msg = centerManager.CompareCenterCodeAndPassword(userLogIn); if (msg == 1) { Session["User"] = userLogIn; Response.Redirect("~/UI/index.aspx"); } else if (msg == 0) { messageLabel.Text = "Center code does not found"; } else if (msg == -1) { messageLabel.Text = "Password does not match"; } else { messageLabel.Text = "Enter Center code & Password Correctly"; } }