C Sharp :: Add ComboBox Inside ListView On Mouse Double Click Event?

I want to add ComboBox inside ListView on mouse double click event. On each double click, a new ComboBox should be added on the next row.

I tried it with the code below, but its not working.

private void form_DblClick(object sender, form_DblClickEvent e)
 {
ComboBox c;
this.Controls.Add(c = new ComboBox());
c.Items.Add("Input");
c.Items.Add("Delay");
c.Items.Add("Message");
c.Items.Add("comment");
listView1.Controls.Add(c);
 }

actually i want to add combobox will all of the above elements in one combobox..when i double click it again..in next line another combobox will be added with all elements...