Question

I’m looking for some general WPF/C# info on binding to a custom class using ObervableCollection. I currently have an error relating to “BindingExpression path error”…”property not found on”. Any pointers would be good.

Answer 1

It sounds like you haven’t assigned your DataContext. Below is a brief example.

Assuming your custom class looks something like this:

CODE:

public class Foo
    {
         private ObservableCollection<string> _names;
         public ObservableCollection<string> Names 
         { 
             get{ return _names;} 
             set
             { 
                  _names = value;

             } 
         }
    }

and your XAML looks like

XAML:

<ListBox Name="lstNames" ItemsSource="{Binding Names}"/>

Set your DataContext in code behind.

lstNames.DataContext = new Foo(); 

This is a very simplistic version to achieve what you need. You should really have a look at Binding to Collections.