How to add subitems to a ListView?

Question

I'm trying to get the simplest possible example of a Listview with subitems working. But this code:

private void button1_Click(object sender, EventArgs e) {
    listView1.Groups.Add(new ListViewGroup("Kannst du mich sehen?", HorizontalAlignment.Left));
    string[] strArr = new string[4] { "uno", "dos", "twa", "quad" };
    for (int i = 0; i < strArr.Length; i++)
    {
        ListViewItem lvi = new ListViewItem(strArr[i]);
        listView1.Items.Add(lvi);
        lvi.SubItems.Add("Ciao, Baby!");
        listView1.Items[i].Group = listView1.Groups[0];
    }
}

...does not display the subitems (the "Ciao, Baby!"s). It shows:

Kannst du mich sehen?
---------------------
uno   dos   twa   quad

...but I want it to be:

Kannst du mich sehen?
---------------------
uno Ciao, Baby!
dos Ciao, Baby!
twa Ciao, Baby!
quad    Ciao, Baby!

Even stranger (it seems to me), I get this:

Default
-------
uno dos twa quad    uno dos twa quad

FIRST
-----
uno dos twa quad

...with this code:

private void button2_Click(object sender, EventArgs e) {
    string[] strArrGroups = new string[3] { "FIRST", "SECOND", "THIRD" };
    string[] strArrItems = new string[4] { "uno", "dos", "twa", "quad" };
    for (int i = 0; i < strArrGroups.Length; i++)
    {
        listView1.Groups.Add(new ListViewGroup(strArrGroups[i], HorizontalAlignment.Left));
        for (int j = 0; j < strArrItems.Length; j++) {
            ListViewItem lvi = new ListViewItem(strArrItems[j]);
            listView1.Items.Add(lvi);
            lvi.SubItems.Add("Hasta la Vista, Mon Cherri!");
            listView1.Items[j].Group = listView1.Groups[i];
        }
    }
}

UPDATE

The ListView's View property acts a little gonzo, if you ask me:

The default "LargeIcon" setting acts as originally shown (and SmallIcon has the same effect). "Detail" gives me the Group header only (no items) "List" gives me the items (one on a line, as I want), but no group/header "Tile" gives me:

Kannst du mich sehen?
---------------------
uno     dos
twa     quad

...with button1's code and:

Default
---------------------
uno     dos
twa     quad
uno     dos
twa     quad

FIRST
---------------------
uno     dos
twa     quad

...with button2's code

Either:

1) I'm stupid
2) ListView is very counterintuitive
-or
3) Nobody ever wants to use the ListView the way I'm trying to use it...if that's the case, should I be using a different control instead?

~~~ Side (or bottom) question: Since I live on StackOverflow, is it possible to become a dual citizen, and are there any tax benefits in doing so?

Answer 1

You need to add another column for the SubItem. The reason why your subitem is not shown is because there is no column for it. Try this one.

listView1.Columns.Add("Column 1"); // you can change the column name
listView1.Columns.Add("Column 2");
string[] strArr = new string[4] { "uno", "dos", "twa", "quad" };
foreach (string x in strArr)
{
    ListViewItem lvi = listView1.Items.Add(x);
    lvi.SubItems.Add("Ciao, Baby!");
}