protected void btnRegister_Click(object sender, EventArgs e) { string firstname = txtFirstName.Text; string lastname = txtLastName.Text; string email = txtEmail.Text; string username = txtUsername.Text; string password = txtPassword.Text; SqlOperation op = new SqlOperation(); try { op.register(firstname, lastname, email, username, password); ClientScript.RegisterStartupScript(typeof(Page), "MessagePopUp", "<script language='JavaScript'>alert('Registration successful. You may now log in.');window.location.href ='login.aspx';</script>"); } catch (Exception ex) { Debug.Print(ex.Message); ClientScript.RegisterStartupScript(typeof(Page), "MessagePopUp", "<script language='JavaScript'>alert('Registration failed.');</script>"); } }