mono/xwt — pull request #237 by luiscubal (2013-08-28 16:03:32+00:00)
Title: Fixed TreeNavigator: Don't throw exception in GetValue<T> when result is null

Fixed bug in TreeNavigator.GetValue (IDataField field).

Attempting to cast null to T (where T was an enum) caused an exception. This changes Xwt to return default(T) instead.