Question

I have a Movie class with a Dim _characters = New ObservableCollection(of String)
Characters is the associated property to get and set

How can i get characters to show up in the listBox using Binding?
So far i have the following, this isn’t working as i don’t know what to put instead of ToString.

<ListBox Name="cList" ItemsSource="{Binding Characters}">

 <ItemsControl >
   <ItemsControl.ItemTemplate >
    <DataTemplate >
     <TextBox Text="{Binding ToString}"/>  
    </DataTemplate> 
   </ItemsControl.ItemTemplate> 
 </ItemsControl>

 </ListBox> 

I want them to be editable, hence a textbox.

i tried to bind Characters to TextBox directly, even that didn’t work.

Edit :
in the code i have parentGrid1.DataContext = me.movies where
parent grid holds movies.

Answer 1

You cannot perform two-way binding to ObservableCollection<string>. In order to make the strings editable you have to create a class with a string get/set property as the following class Foo:

public class Foo
{
    string _text;

    public Foo(string text)
    {
        _text = text;
    }
    public string Text 
    {
        get { return _text; }
        set { _text = value; }
    }
}

Your Characters should then be of type ObservableCollection<Foo> and your XAML should be changed so that the textboxes are binding to Foo.Text:

<ListBox ItemsSource="{Binding Characters}" >
    <ListBox.ItemTemplate >
        <DataTemplate >
            <TextBox Text="{Binding Text}"/>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>