Build mode for keys in mult-set Relationship Classes.
| Constant | 
Value | 
Description | 
| esriRelKeyTypeSingle | 
0 | 
Key is a single value. | 
| esriRelKeyTypeDual | 
1 | 
Key is a couple Class Identifier, Object Identifier. | 
 
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.