var ctrl = new System.Web.UI.WebControls.TextBox();
ctrl.ID = "ctrl";
ctrl.Text = "Demo";
ctrl.Visible = true;

var demo = new ListViewDataItem(0, 0);
var lvi = new ListViewItem(ListViewItemType.InsertItem);

//demo.DataItem = new Dictionary<Object, Object> {{ "Demo" , "Demo" }};   // Dictionary
//demo.DataItem = lvi;                                       // ListViewItem
demo.DataItem = routesList[0];                           // DbDataReord
//demo.DataItem = new string[] { "Demo" };          // Array

AdminTopListView.Items.Add(demo);
AdminTopListView.Controls.Add(ctrl);
AdminTopListView.DataBind();