一般情况请注意别先删除了选中行，又去使用。那就会导致找不到选中行。。。。。哥犯了这个错误。。。找了很长时间问题

if (this.lstwlview.SelectedIndices.Count > 0)

            {

                if (MessageBox.Show("确认删除该条码？", "操作提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1) == DialogResult.OK)

                {

                     //获得选择的序列号

                    string ss = "";

                    if (lstwlview.SelectedIndices != null && lstwlview.SelectedIndices.Count>0)

                    {

                        ListView.SelectedIndexCollection c = lstwlview.SelectedIndices;

                        ss = lstwlview.Items[c[1]].Text;

                        //ss = lstwlview.Items[c[0]].SubItems[1].Text;// 表示选中行的第二列

                        MessageBox.Show(ss);

                    }

                }

            }