private void OK_Click(object sender, EventArgs e) { int ClientID = DataBaseGetRows.IsAdmin(LoginForm.Text, PasswordForm.Password.ToString()); if (ClientID == 0) { admin.Visibility = Visibility.Visible; first.Visibility = Visibility.Hidden; } else if (ClientID > 0) { lawyer.Visibility = Visibility.Visible; first.Visibility = Visibility.Hidden; LawyerData(ClientID); } else { ErroAuthorization.Visibility = Visibility.Visible; } }