1            DateTime _date;
2
3            int n = 0;
4            int max = 30;
5
6            while (n < max)
7            {
8                _date = DateTime.Now.AddDays(n);
9                //listView1.Items.AddRange(

10                ListViewItem item = new ListViewItem(_date.ToShortDateString());
11                item.SubItems.Add("Description " + n);
12                listevent.Items.Add(item);
13
14                n++;

Put it in the List view load