Allows to traverse through OPC A&E address space nodes under the specified node, using given browse parameters, and allowing only nodes that fulfill a specified predicate into the traversal.
Syntax
Parameters
- client
- The client object that will perform the operation.
- serverDescriptor
- Server descriptor. Identifies the OPC-A&E server.
- nodeDescriptor
- Starting node descriptor. Identifies the node in OPC server's address space.
- browseParameters
- Contains filtering conditions for OPC Alarms&Events node browsing.
- nodeElementPredicate
- The predicate specifying which nodes will be allowed into the traversal.
Return Value
Returns an enumerator of tree positions that will traverse through all nodes specified.
Exceptions
Exception | Description |
System.ArgumentNullException |
A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.
This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception. |
Requirements
Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows
See Also