private void BtnOk_Click(object sender, EventArgs e) { int num = GetStyleNum(); Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); int userId = int.Parse(config.AppSettings.Settings["UserId"].Value); setting = ConfigurationSetting.UpdateConfigSettingFromColor(userId, num); //スタイルの色設定 AppConst.FormStyle.FormColor = AppConst.FormStyle.GetBGColor(setting.StyleColor); Close(); }