Try code such as:
ListViewItem item = new ListViewItem("NewItem");
item.SubItems.AddRange( new string[] { "SubItem1", "SubItem2" ) };
listView1.Items.Add( item );
listView1.Items.Add(
new ListViewItem( new string[] { "item1", "item2", "item3", "item4" } );
listView1.View = View.Details;
Contributed from George Shepherd's Windows Forms FAQ