Question

Okay, how do I programmatically add items from an List<ListViewItem.ListViewSubItem> to an ListView? I am trying to load 3 lists of items next to each other, but it doesn’t seem to work…

Here’s some code I have right now:

    //----------PluginHandler.cs----------/

public static List<ListViewItem> PluginList = new List<ListViewItem>();
public static List<ListViewItem.ListViewSubItem> PluginList2 = new List<ListViewItem.ListViewSubItem>();

PluginList.Clear();
PluginList2.Clear();
foreach (var item in plugin.versions)
{
    var lvitem = new ListViewItem { Text = item.name };
    var lvitem2 = new ListViewItem.ListViewSubItem { Text = item.filename };
    PluginList.Add(lvitem);
    PluginList2.Add(lvitem2);
}

    //----------Form1.cs----------/

lvPluginInfo.Items.AddRange(PluginHandler.PluginList.ToArray());
lvPluginInfo.Items[0].SubItems.AddRange(PluginHandler.PluginList2.ToArray());

The output I get isn’t really what I want, it keeps adding subitems to the right instead of adding them next to eachother like:

item1a | item2a
item1b | item2b
…

Now I get:
item1a | item2a | item1b | item2b | …

Any ideas? Thanks!

Answer 1

You seem to be going about this in a very odd fashion. I assume this is what you’re intending to do?

lvPluginInfo.Items.Clear();
foreach (var item in plugin.versions)
{
    var lvitem = new ListViewItem(item.name);
    lvitem.SubItems.Add(item.filename);
    lvPluginInfo.Items.Add(lvitem);
}

The problem with the way you’re going about it is the following line: lvPluginInfo.Items[0].SubItems.AddRange(PluginHandler.PluginList2.ToArray());. You’re adding all the subitems to the first ListViewItem. Adding the items outside of the loop doesn’t make much sense here.