System.Text.StringBuilder.Clear C# (CSharp) Method

		public StringBuilder Clear ()
		{
			_length = 0;
			return this;
		}
#endif

        /// <summary>
        /// 画面の設定を保存する
        /// </summary>
        void SaveDisplayInfo()
        {
            ns_IniFile.SettingIni     _ini    = new ns_IniFile.SettingIni();
            System.Text.StringBuilder SetData = new System.Text.StringBuilder();

            //動画
            SetData.Clear();
            SetData.Append(SaveDisplayInfo_Movie(0, txt_movie_1.Text));
            SetData.Append(",");
            SetData.Append(SaveDisplayInfo_Movie(1, txt_movie_2.Text));
            SetData.Append(",");
            SetData.Append(SaveDisplayInfo_Movie(2, txt_movie_3.Text));
            SetData.Append(",");
            SetData.Append(SaveDisplayInfo_Movie(3, txt_movie_4.Text));
            _ini.Func_SetIni(ns_IniFile.SettingIni.IniFileID.DISPLAY, SetData.ToString());

            //画面の結合
            SetData.Clear();
            SetData.Append(checkBox_display_1.IsChecked.ToString());
            SetData.Append(",");
            SetData.Append(checkBox_display_2.IsChecked.ToString());
            SetData.Append(",");
            SetData.Append(checkBox_display_3.IsChecked.ToString());
            SetData.Append(",");
            SetData.Append(checkBox_display_4.IsChecked.ToString());
            SetData.Append(",");
            SetData.Append(radioButton_Horizon.IsChecked.ToString());
            SetData.Append(",");
            SetData.Append(radioButton_Vertical.IsChecked.ToString());
            _ini.Func_SetIni(ns_IniFile.SettingIni.IniFileID.OPTION, SetData.ToString());
        }