I encountered a rather annoying reflection exception that caused WPF dead in it's tracks during binding which I thought might be nice to share here.

The problem arises when you bind against a property and WPF (or rather: reflection) can not determine which property you actually mean. This situation can occur when you have a property on a base class and you redefine (using the 'new' keyword) that property on a class that inherits from the base class. Here is some pseudo-code:

public class mySpecialisation<T> : myBase
{
   public new T myProperty { get { return (T)base.something; } }
}

public class myBase
{
   public object myProperty { get { return something;} }
}

As you can see, the above situation might be a convenient way to construct your classes. However, it will throw an ugly exception.
The obvious way to work-around this problem, is to make the property on the baseclass private or protected. However, in my case, I needed to get the the property through the baseclass as well. So I renamed the property in the inheritor and got rid of the exception. Kind of disappointing though!