How to implement a simple type converter in Silverlight 2 Beta2

Hi,

I kown how to implement a simple type converter that provides a drop-down list of standard values in a property browser in WPF.

How do it in Silverlight 2 Beta2 ?

I use the namespace "System.ComponentModel" , but i can't find  method "GetStandardValuesSupported","StandardValuesCollection" to override!
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