CODEWITHSUNDEEP
c#wpflistbox
Qerts
Qerts

Reputation: 1005

ListBox.SetBinding - ItemSourceProperty does not work

I use WPF in school project. Everything was just fine, until I tried to bind list to ListBox. I wrote some example code, where the issue appears.

    public MainWindow()
    {
        InitializeComponent();

        //make a new source
        myDataObject = new TestClass(DateTime.Now);
        Binding myBinding = new Binding("Students");
        myBinding.Source = myDataObject.Students;

        List<TestStudent> students = new List<TestStudent>();
        for (int i = 0; i < 10; i++)
        {
            students.Add(new TestStudent("name" + i, "surename" + i));
        }

        myDataObject.Students = students;

        myList.ItemsSource = myDataObject.Student; //this works

        myList.SetBinding(ListBox.ItemsSourceProperty, myBinding); //this doesn't show anything

    }

I have properly implemented INotifyPropertyChanged interface. When I add some data this way to any TextBox.Text, it works fine. But when I try to bind list to ListBox.ItemsSource, result is empty box. Why does this happen? Thanks in advance for any advices.

Upvotes: 0

Views: 209

Answers (1)

Thomas Levesque
Thomas Levesque

Reputation: 292435

The Source of the binding should be myDataObject, not myDataObject.Students. If you set myDataObject.Students as the source, the ListBox will try to bind to myDataObject.Students.Students, which doesn't exist.

Upvotes: 2

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