When overridden in a derived class, allows a designer to add items to the set of properties that it exposes through a TypeDescriptor.
Assembly: System (in System.dll)
This method provides a way to add items to the dictionary of properties that a designer exposes through a TypeDescriptor.Notes to Implementers
You can directly modify the dictionary that is accessible through the properties parameter, or you can leave it unchanged. If you are overriding this method, call the base implementation before you perform your own filtering.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.