How to auto scroll down in WinForms ListView control when update new item?

Try

listView1.Items[listView1.Items.Count - 1].EnsureVisible();

old fashioned solution:

 ListView1.SetFocus;
 PostMessage(ListView1.Handle, WM_KEYDOWN, VK_DOWN, 0);

Another possible solution:

listview1.TopItem = listView1.Items[listView1.Items.Count - 1];

maybe

listView1.Items[listView1.Items.Count - 1].Selected = false;
listView1.Items[listView1.Items.Count - 1].Selected = true;