关于在列表视图中删除行时的行号的问题

问题描述

现在我已经在数据库中添加了行号

但是删除行时出现问题

Now i''ve add row number in database already

but i''ve problem when i''ve delete row

private void listView1_MouseDoubleClick(object sender, MouseEventArgs e)
       {
           for (int i = 0; i <= listView1.SelectedItems.Count - 1; i++)
           {
               ListViewItem lvi = listView1.SelectedItems[i];
               listView1.Items.Remove(lvi);
           }
       }

示例我删除了第3行，我删除了5行

第一行编号为12345
当我删除它时会显示1245
我希望它成为1234

我找到了解决此问题的方法，但是它在VB中

在此链接上 http://www.pcreview.co.uk/forums/row-number -listview-t1417082.html [ ^ ]

我已经尝试了很长时间，但是还没有解决办法

请任何人帮助我

非常感谢您

Example i''ve delete row number 3 and i''ve 5 row

first row number is 12345
When i''ve delete it''s show 1245
i want it gonna be 1234

i find solution for this Problem but it''s in VB

on this link http://www.pcreview.co.uk/forums/row-number-listview-t1417082.html[^]

I''ve try for long time but i haven''t got a solution

Please anyone to Help me

Thankyou so much

推荐答案

private void listView1_MouseDoubleClick(object sender, MouseEventArgs e)
       {
           DataTable dt1 = new DataTable();//<< datatable เปล่า
           string[] data_new = new string[7];//<< ตาม column
           int countnum = 0;
           dt1.Columns.Add("No.", typeof(string));
           dt1.Columns.Add("ID", typeof(string));
           dt1.Columns.Add("NAME", typeof(string));
           dt1.Columns.Add("Price", typeof(string));
           dt1.Columns.Add("Quantity", typeof(string));
           dt1.Columns.Add("Summary", typeof(string));
           dt1.Columns.Add("Lot.", typeof(string));

           for (int i = 0; i < listView1.Items.Count; i++)
           {
               if (listView1.Items[i].Selected == false) //<< inverse Select
               {
                   countnum += 1;
                   data_new[0] = (countnum).ToString();
                   data_new[1] = listView1.Items[i].SubItems[1].Text;
                   data_new[2] = listView1.Items[i].SubItems[2].Text;
                   data_new[3] = listView1.Items[i].SubItems[3].Text;
                   data_new[4] = listView1.Items[i].SubItems[4].Text;
                   data_new[5] = listView1.Items[i].SubItems[5].Text;
                   data_new[6] = listView1.Items[i].SubItems[6].Text;

                   dt1.Rows.Add(data_new); //datatabel ใหม่ที่ลบแล้ว
               }
           }
           int fc = dt1.Columns.Count;
           listView1.Items.Clear();
           foreach (DataRow row in dt1.Rows)
           {
               string[] subitems = new string[fc];
               object[] o = row.ItemArray;
               for (int i = 0; i < fc; i++)
               {
                   subitems[i] = o[i].ToString();
               }
               ListViewItem item = new ListViewItem(subitems);
               listView1.Items.Add(item);
           }
           for (int i = 1; i <= listView1.SelectedItems.Count ; i++)
           {
               ListViewItem lvi = listView1.SelectedItems[i];
               listView1.Items.Remove(lvi);
           }
           CalculateNet();
       }

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