There’s a much easier way of doing this. You can assign a Name to your Window or UserControl, and then binding by ElementName.
Window1.xaml
<Window x:Class="QuizBee.Host.Window1"
x:Name="Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<ListView ItemsSource="{Binding ElementName=Window1, Path=myDictionary}" />
</Window>
Window1.xaml.cs
public partial class Window1:Window
{
// the property must be public, and it must have a getter & setter
public Dictionary<string, myClass> myDictionary { get; set; }
public Window1()
{
// define the dictionary items in the constructor
// do the defining BEFORE the InitializeComponent();
myDictionary = new Dictionary<string, myClass>()
{
{"item 1", new myClass(1)},
{"item 2", new myClass(2)},
{"item 3", new myClass(3)},
{"item 4", new myClass(4)},
{"item 5", new myClass(5)},
};
InitializeComponent();
}
}