OPC Studio User's Guide and Reference
UABrowseParameters Constructor(UANodeClass,UABrowseDirections,IEnumerable<UANodeId>)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA Namespace > UABrowseParameters Class > UABrowseParameters Constructor : UABrowseParameters Constructor(UANodeClass,UABrowseDirections,IEnumerable<UANodeId>)
Specifies which node classes will be returned by the browsing.
Specifies the directions of the references to return.
Specifies which reference types will be returned by the browsing.

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

Initializes a new instance of the class, specifying the node classes, browse directions, and reference type Ids.
Syntax
'Declaration
 
Public Function New( _
   ByVal nodeClasses As UANodeClass, _
   ByVal browseDirections As UABrowseDirections, _
   ByVal referenceTypeIds As IEnumerable(Of UANodeId) _
)
'Usage
 
Dim nodeClasses As UANodeClass
Dim browseDirections As UABrowseDirections
Dim referenceTypeIds As IEnumerable(Of UANodeId)
 
Dim instance As New UABrowseParameters(nodeClasses, browseDirections, referenceTypeIds)

Parameters

nodeClasses
Specifies which node classes will be returned by the browsing.
browseDirections
Specifies the directions of the references to return.
referenceTypeIds
Specifies which reference types will be returned by the browsing.

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

Exceptions
ExceptionDescription

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.

An invalid enumeration value was used.

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.

Remarks
You can use the constants from OpcLabs.EasyOpc.UA.AddressSpace.Standard.UAReferenceTypeIds to construct the set of reference types.
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