The data source for OPC reads (from device, from OPC cache, or dynamically determined).
DISPID (Dispatch ID):
For more information, see DataSource in .NET Reference.
 
            
DISPID (Dispatch ID):
For more information, see DataSource in .NET Reference.
| Visual Basic | 
|---|
| Public Property DataSource As DADataSource | 
See DataSource in .NET Reference.
For remarks, see DataSource in .NET Reference.
For examples, see DataSource in .NET Reference.