Binding with ObservableCollection <string>

I'm trying to do something very simple: I want to show an ObservableCollection in an ItemsControl. I also want the user to be able to edit the rows in the ObservableCollection.

My view model is pretty simple:

public class MainViewModel : ViewModelBase
{
    public ObservableCollection<string> Values { get; set; }

    public MainViewModel()
    {
        Values = new ObservableCollection<string> { "foo", "bar" };
    }
}

      

        
        
        
      

    

In my opinion, I define a DataTemplate for my ItemsControl to display a textbox inside each item, no problem:

<ItemsControl ItemsSource="{Binding Values}">
            <ItemsControl.ItemTemplate>
                <DataTemplate DataType="{x:Type sys:String}">
                    <TextBox Text="{Binding Path=., UpdateSourceTrigger=PropertyChanged}" />
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>

      

        
        
        
      

    

Everything seems to be running smoothly, I can see the contents of my ObservableCollection in my opinion. However, when I edit the text in the textbox my ObservableCollection is not updated, the values ​​remain the same.

The only workaround I've found for this to work is to create a class:

public class StringWrapper
{
    public string Value { get; set; }
}

      

        
        
        
      

    

Then I change the type of my ObservableCollection to ObservableCollection<StringWrapper>

and in my DataTemplate I bind the Text property of my TextBox to a value. It works, but it's ugly.

So my question is, is there a way to bind the ObservableCollection to the ItemsControl and be able to update the values?