Point m_MBRpt = listView1.PointToClient(Control.MousePosition);
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;