ArcObjects Library Reference (Schematic)  

esriSchematicConnectionState Constants

Constant Value Description
esriConnectionStateOpen 0 The connection is open.
esriConnectionStateInvalid 1 The connection failed to open.
esriConnectionStateUnknown 2 Not yet attempted to open the connection.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. Requires Schematics Extension.