if (listView1.Items.Count == 0) return;
var col = listView1.Columns.Cast<ColumnHeader>()
.Select((x, i) => new { x, i })
.FirstOrDefault(a => a.x.Text == "ID");
if (col == null) return;
foreach (ListViewItem item in listView1.Items)
{
item.SubItems[col.i].Text = "";
}