private void listView1_MouseDown(object sender, MouseEventArgs e)
    {
      //
      if (e.Button==MouseButtons.Right)
      {
        // 得到屏幕鼠標的坐標，轉換為列表控件的坐標標
        m_MBRpt = listView1.PointToClient(Control.MousePosition);
      }

    }

private void COPYITEM_Click(object sender, EventArgs e)
    {
      //復制指定表格單元格的內容
      if (listView1.SelectedItems.Count <= 0)
      {
        MessageBox.Show("沒有選中交易信息！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
        return;
      }

      // 得到屏幕鼠標的坐標，轉換為列表控件的坐標標(在鼠標按下時就去處理并保存)
      //Point pt = listView1.PointToClient(m_MBRpt);

      ListViewItem lstrow = listView1.GetItemAt(m_MBRpt.X, m_MBRpt.Y);
      System.Windows.Forms.ListViewItem.ListViewSubItem lstcol = lstrow.GetSubItemAt(m_MBRpt.X, m_MBRpt.Y);
      string strText = lstcol.Text;
      //設置到粘貼板
      SetClipboardText(strText);

    }

 public void SetClipboardText(string strText)
    {
      try
      {
        Clipboard.SetDataObject(strText);
      }
      catch (System.Exception ex)
      {
        MessageBox.Show(ex.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);      
      }
      
    }