private void button5_Click(object sender, EventArgs e)
{
var id = listView1.SelectedItems[0].Index;
var inforow = new addedit(mainList[id]);
var dialog = inforow.ShowDialog(this);
if (dialog == DialogResult.OK)
{
mainList[id] = inforow.row;
listView1.Items[id] = new ListViewItem(new string[] {
mainList[id].ID.ToString(),
mainList[id].FullName,
mainList[id].BithDate.ToString(),
});
}
}