Returns true if the field corresponding to the given field name is marked as having 'unknown value'. If the field has a 'known value' a TipcMsgBadFieldException will be thrown. If there is no field by that name, an exception will be thrown.
the field data
| Exception Type | Condition |
|---|---|
| TipcMsgException | If there is no field by that name |
| TipcException | For all other errors |
TipcMsg Class | TipcMsg Members | TIBCO.SMARTSOCKETS Namespace | nextUnknown