Add items in list view in C#

listView_TitleList.View = View.Details;
listView_TitleList.GridLines = true;
listView_TitleList.FullRowSelect = true;
listView_TitleList.Columns.Add("Value1", 200);
listView_TitleList.Columns.Add("Value2", 400);

String[] addItems = { 'A10', 'D20' };
ListViewItem newitem = new ListViewItem(addItems);
listView_TitleList.Items.Add(newitem);

String[] addItems = { 'A15', 'D20' };
ListViewItem newitem = new ListViewItem(addItems);
listView_TitleList.Items.Add(newitem);

String[] addItems = { 'A11', 'D25' };
ListViewItem newitem = new ListViewItem(addItems);
listView_TitleList.Items.Add(newitem);