private void button2_Click(object sender, EventArgs e)
{
int n = (int) listView1.View;
if (n == 4)
n = -1;
listView1.View = (View)Enum.ToObject(typeof(View), ++n);
}
private void button2_Click(object sender, EventArgs e)
{
int n = (int) listView1.View;
if (n == 4)
n = -1;
listView1.View = (View)Enum.ToObject(typeof(View), ++n);
}