Can't See ListViewItem.SubItems

Question

For some reason, when I write the following code in my Visual Studio 2010 (.NET Framework 4.5):

ListViewItem item = new ListViewItem("item1");
item.SubItems

there is no such field as SubItems.

What could be the reason for that?

Regards, Vitalii.

Answer 1

Yes there is, at least in winforms.

Look a little closer, once you add the dot the usual list of items should come up:

ListViewItem item = new ListViewItem("item1");
item.SubItems.Add("subitem1");

Note: To declare an instance you need to reference the class like this:

ListViewItem.ListViewSubItem lvsi = new ListViewItem.ListViewSubItem();

Also note: Sometimes Intellisense stops working; I have to restart VS to bring it back to life..

If however you are targeting WPF, then you are right: There are no SubItems in a WPF ListViewItem. It is a ContentControl, which can contain whatever you put there, I believe. But I'm no WPF expert. A good book may be best..

          System.Windows.Controls.ContentControl
            System.Windows.Controls.ListBoxItem
              System.Windows.Controls.ListViewItem

Answer 2

There is a ListViewItem constructor that takes a string array, where the first element is the main item text and the other are the SubItems texts:

var myNewItem = new ListViewItem(new[]
                { 
                    "First column", 
                    "Second column", 
                    "Third column"
                });

myListItem.Items.Add(myNewItem);

Of course, you have to set your ListView Mode to Detail mode, and create the Columns collection accordingly.

EDIT: This is a WinForm tip... I dont know if it applies to WPF unfortunately.