using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Windows.Forms;namespace Common{    /// 
    /// 列表视图操作类     /// 
    public class CtlListViewOperate    {        private ListView m_listView = null;        /// 
        /// 关联列表视图控件        /// 
        public ListView refListViewControl        {            set            {                m_listView = value;            }            get            {                return m_listView;            }        }        /// 
        /// 构造函数        /// 
        /// 树视图控件        public CtlListViewOperate()        {        }        //public CtlListViewOperate(ListView listView)        //{        //    m_listView = listView;        //}        private static volatile CtlListViewOperate m_dgvOpera = null;        /// 
        /// 获取列表视图操作类单一实例        /// 
        /// 
             public static CtlListViewOperate GetInstance()        {            if(null == m_dgvOpera)            {                m_dgvOpera = new CtlListViewOperate();            }            return m_dgvOpera;        }        /// 
        /// 删除选中的项        /// 
        public void DeleteItems()        {            if (MessageBox.Show("确定要删除选中的项吗?", "", MessageBoxButtons.OKCancel) == DialogResult.OK)            {                int num = m_listView.CheckedItems.Count;                for (int i = num - 1; i >= 0; i--)             //从大到小序列依次删除  否则 删除 报错 因为 视图项是动态的                {                    m_listView.Items.Remove(m_listView.CheckedItems[i]);                }            }        }        /// 
        /// 添加新项        /// 
        /// 名        /// 值        public void AddItem(string name, string value)        {            int num = m_listView.Items.Count;            for (int i = 0; i < num; i++ )            {                if ((m_listView.Items[i].Tag).ToString() == value)                {                    MessageBox.Show("该项已经存在！");                    return;                }            }            ListViewItem lvi = new ListViewItem();            lvi.Text = name;            lvi.Tag = value;            m_listView.Items.Add(lvi);        }        /// 
        /// 添加新项        /// 
        /// 视图子项        public void AddItem(ListViewItem lvi)        {            m_listView.Items.Add(lvi);        }    }}