| Class | Description |
| TriggerContext | Provides contextual information about the trigger that was fired. |
| VistaDBClrProcedureAttribute | Used to mark a method definition in an assembly as a CLR Proc. The properties on the attribute reflect the physical characteristics used when the type is registered with VistaDB. This class cannot be inherited. |
| VistaDBContext | Context of CLR Proc and triggers |
| VistaDBContext.DDAChannel | DDA context of CLR Proc and triggers |
| VistaDBContext.SQLChannel | SQL context of CLR Proc and triggers |