Making ListView scrollable in vertical direction

You need to Set

Listview1.Scrollable = true;
Listview1.View = View.Details

This will only work correctly if you have added some columns in your Listview1,
So add a dummy column. like,

ColumnHeader header = new ColumnHeader();
header.Text = "";
header.Name = "col1";
listView1.Columns.Add(header);