OPC Studio User's Guide and Reference
DataNodes Property



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA Namespace > UABrowseParameters Class : DataNodes Property
Browse parameters used for browsing the data nodes, i.e. Objects, DataVariables, and Properties in the address space.
Syntax
'Declaration
 
<NotNullAttribute()>
Public Shared ReadOnly Property DataNodes As UABrowseParameters
'Usage
 
Dim value As UABrowseParameters
 
value = UABrowseParameters.DataNodes
[NotNull()]
public static UABrowseParameters DataNodes {get;}
[NotNull()]
public:
static property UABrowseParameters^ DataNodes {
   UABrowseParameters^ get();
}

Property Value

The value of this property cannot be null (Nothing in Visual Basic).

Remarks

The parameters combine Objects and Variables (Variables are DataVariables and Properties).

See also: Standard ReferenceTypes - General.

In OPC UA, references are used to relate nodes to each other. Each reference has a type, and the reference types form an inheritance hierarchy. Browsing and querying is used to retrieve the references from the address space. For visual illustration of the inheritance hierarchy of standard reference types, see Standard ReferenceType Hierarchy in the OPC UA specification (Part 3).

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

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