Castle Windsor: setting a parameter value to an empty string

Question

How can I let one of my string parameters be an empty string?

I get this error when I try either nothing or one place (names changed):

Cannot resolve optional dependency for 'test.User' (MyNamespace.MyObject). UserName parameter of type System.String

Answer 1

It turned out that it is much easier and probably more correct to add a constructor that does not accept the parameters (s) that you want to leave empty.

Answer 2

container.Register(
   Component.For<Foo>()
      .DependsOn(new
      {
         someString = string.Empty
      }));

, ? .

Answer 3

, , null - ? :

<component id="emptyString" type="System.String, mscorlib" />

and then use it in node parameters:

<parameters> <someStringParameter>${emptyString}</someStringParameter> </parameters>

But there seems to be a simpler way.