Bind to property in a nested static class

Question

I have the following construction:

public static class Constants {
  public static class Foo {
    public static string Bar {
      get {
        //Constants.Foo.Bar == "FooBar"
        return "FooBar";
      }
    }
  }
}

I want to bind this to a button in a usercontrol.

<Button Content="{Binding Source={x:Static ns:Constants.Foo.Bar}}" />

(where ns points to the assembly and namespace where "Constants" is defined).
This results in two errors:

• "Cannot find the type 'Constants.Foo'. Note that type names are case sensitive."
• "Type 'ns:Constants.Foo' was not found."

I also tried:

<Button Content="{Binding Source={x:Static ns:Constants+Foo.Bar}}" />

This results in one error:

• "Type 'ns:Constants+Foo' was not found."

Is is possible to bind to a static property in a static class in a static class? If yes, how?

Answer 1

this works for me

 <Button Content="{Binding Source={x:Static local:Constants+Foo.Bar}}" />

local is

 xmlns:local="clr-namespace:WpfTestApp1"