C#：復選框操作類

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Common
{
    /// <summary>
    /// 復選框操作類
    /// </summary>
    public class CtlCheckBoxOperate
    {
        private CheckBox m_checkBox = null;

        /// <summary>
        /// 關聯CheckBox控件
        /// </summary>
        public CheckBox refCheckBoxControl
        {
            set
            {
                m_checkBox = value;
            }
            get
            {
                return m_checkBox;
            }
        }

        /// <summary>
        /// 構造函數
        /// </summary>
        public CtlCheckBoxOperate()
        {

        }

        private static volatile CtlCheckBoxOperate m_chkbOpera = null;
        /// <summary>
        ///獲取操作TextBox控件的單一實例
        /// </summary>
        public static CtlCheckBoxOperate GetInstance()
        {
            if(null == m_chkbOpera)
            {
                m_chkbOpera = new CtlCheckBoxOperate();
            }
            return m_chkbOpera;
        }

        /// <summary>
        /// 獲取組件內所有選中的CheckBox文本
        /// </summary>
        /// <param name="groupBox">組控件</param>
        /// <returns>所有選中的CheckBox數量</returns>
        public int GetSelectedTexts(GroupBox groupBox, ref string[] chkbTexts)
        {
            int i = 0;
            foreach(Control control in groupBox.Controls)
            {
                if(control is CheckBox)
                {
                    chkbTexts[i] = ((CheckBox)control).Text;
                    i++;
                }
            }
            return i;
        }
    }
}