WPF ComboBox binding ItemsSource

Question

I\'m a beginner on WPF and trying to bind the Items of a ComboBox to an ObservableCollection

I used this code:

XAML

Answer 1

   public MainWindow()
    {

        InitializeComponent();
        cmbContent=new ObservableCollection();
        cmbContent.Add("test 1");
        cmbContent.Add("test 2");
        cmbTest.ItemsSource = cmbContent;

    }
    public ObservableCollection cmbContent { get; set; }

The code above don't use any binding, that's mean using it there no need to bind the Combobox's ItemSource, if you wan't to use binding you need to

First: Set the DataContext from the CodeBehind (ViewModel) using :

this.DataContext=this;

or from the Xaml:

DataContext="{Binding RelativeSource={RelativeSource Self}}">

Second : use the Binding in the ItemSource Just like you did ItemsSource="{Binding Path=cmbContent}" you may also considere using INotifyPropertyChanged Interface if you want to Notify the UI in case of any changes in a property