Release 10.1A: OpenEdge Development:
.NET Open Clients

Exception class hierarchy

The 4GL exceptions classes are shown below, hierarchically:

System.Exception    Progress.Open4GL.Exceptions.ProException       Progress.Open4GL.Exceptions.Open4GLException          Progress.Open4GL.Exceptions.SystemErrorException          Progress.Open4GL.Exceptions.SchemaValidationException          Progress.Open4GL.Exceptions.RunTime4GLException             Progress.Open4GL.Exceptions.RunTime4GLErrorException             Progress.Open4GL.Exceptions.RunTime4GLQuitException             Progress.Open4GL.Exceptions.RunTime4GLStopException          Progress.Open4GL.Exceptions.OutputSetException          Progress.Open4GL.Exceptions.MetaDataException          Progress.Open4GL.Exceptions.BusySessionException          Progress.Open4GL.Exceptions.ConnectException             Progress.Open4GL.Exceptions.HostUnknownException             Progress.Open4GL.Exceptions.BadURLException             Progress.Open4GL.Exceptions.BrokerIOException             Progress.Open4GL.Exceptions.ConnectFailedException             Progress.Open4GL.Exceptions.ConnectProtocolException             Progress.Open4GL.Exceptions.InvalidNameServerPortException             Progress.Open4GL.Exceptions.NameServerClientPortException             Progress.Open4GL.Exceptions.NameServerClientPortRangeException             Progress.Open4GL.Exceptions.NameServerClientPortRetryException             Progress.Open4GL.Exceptions.NameServerCommunicationsException             Progress.Open4GL.Exceptions.NameServerInterruptException             Progress.Open4GL.Exceptions.NameServerMessageFormatException             Progress.Open4GL.Exceptions.NoSuchAppServiceException             Progress.Open4GL.Exceptions.UnknownHostnameException