Why do some WPF binding fail against IronRuby properties?

Question

So, lets say I have two nearly identical classes in C# and Ruby:

C#

public class Test
{
    public Test()
    {
        ImageLocation = "http://www.ironruby.net/@api/deki/site/logo.png";
    }

    public string ImageLocation { get; set; }
}

Ruby

class Test
    attr_accessor :ImageLocation

    def initialize
      @ImageLocation = "http://www.ironruby.net/@api/deki/site/logo.png"
    end
end

When I bind to the "ImageLocation" property in C#, all three controls bind properly. When I bind to the same property with the IronRuby object, it works for TextBlock, but fails for TextBox and Image. Here is my XAML:

<Image Source="{Binding ImageLocation}" Width="50" />
<TextBlock Text="{Binding ImageLocation}" />
<TextBox Text="{Binding ImageLocation}" />

Why does the binding work properly for one control, but not the others?

Answer 1

IronRuby types have a few problems with WPF binding... let's say that it's not perfect yet :)

To solve your problem, I recommend you to use CLR classes and types. For example, to make your sample code work just convert this line:

@ImageLocation = "http://www.ironruby.net/@api/deki/site/logo.png"

To this:

@ImageLocation = "http://www.ironruby.net/@api/deki/site/logo.png".to_clr_string

Answer 2

Ivan Porto Carrero's book IronRuby in Action provides the solution to your problem. See databinding.rb from the book's source code.

This definitely doesn't solve the problem you're having, and I've repro'd it myself.

Update: Shay's answer worked for me, too.