private void lv_checkxm_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            ListViewItem item = lv_checkxm.GetItemAt(e.X, e.Y);

            if (object.Equals(null, item))
            {
                return;
            }

            try
            {
                tjglbiz.Delete_tj_tjjlb(str_tjbh, str_tjcs, lv_checkxm.SelectedItems[0].Tag.ToString().Trim());
                lv_checkxm.Items.Remove(lv_checkxm.SelectedItems[0]);
            }
            catch
            {
            }
        }