TypeConverter.ConvertFrom Method (Object)
Converts from the specified value to the type of this converter.
Assembly: System (in System.dll)
The base implementation calls ConvertFrom passing null for context and the current culture for culture. This is not the signature that the Silverlight 4 XAML parser calls (the XAML parser always uses en-US culture).
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.