ListBox.ItemsSource - fjernet?

[jappadu]

'ListBox' does not contain a definition for 'ItemsSource' and no 
accessible extension method 'ItemsSource' accepting a first 
argument of type 'ListBox' could be found (are you missing a 
using directive or an assembly reference?)	

Jeg får denne feilmeldingen når jeg skal benytte "ItemsSource" i forbindelse med et nettkurs. Er "ItemsSource" slettet fra ListBox?

namespace FormTest
{
    public partial class Form1 : Form
    {
        private string pathFile = @"C:\Users\bruker\Documents\test.txt";

        ObservableCollection<string> items = new ObservableCollection<string>();

        public Form1()
        {
            InitializeComponent();
            
            ListBox properties = new ListBox();

            properties.ItemsSource = items;


        }
   }
}

[Laserbeam]

Prøv å bruke DataSource istedenfor.

https://docs.microsoft.com/en-us/dotnet/framework/winforms/controls/how-to-bind-a-windows-forms-combobox-or-listbox-control-to-data

properties.DataSource = items; 

Veit ikke om det fungerer, har ikke prøvd. Men krysser fingrene.