private void ChangePassword_Click(object sender, RoutedEventArgs e) { ErrorPr.Text = null; ErrorNew.Text = null; this.Password.Text = null; string lastpassword = lastPassword.Text; string newpassword = NewPassword.Text; if (_park.UserExisting(_park.ActivePhoneNumber, lastpassword)) { if (newpassword.Length >= 6) { _park.ChangePassword(_park.ActivePhoneNumber, newpassword); Settings setting = new Settings(_park); setting.Show(); setting.Password.Text = null; setting.Password.Text = "Password has already changed"; this.Close(); } else { ErrorNew.Text = null; ErrorNew.Text = ">6 symb"; } } else { ErrorPr.Text = null; ErrorPr.Text = "wrong"; } }