QuickOPC User's Guide and Reference
BrowseOne(IEasyUAClient,UAEndpointDescriptor,UANodeDescriptor,UABrowseParameters) Method



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA Namespace > IEasyUAClientExtension Class > BrowseOne Method : BrowseOne(IEasyUAClient,UAEndpointDescriptor,UANodeDescriptor,UABrowseParameters) Method
The client object that will perform the operation.
Endpoint descriptor. Identifies the OPC-UA server.
Node descriptor. Identifies the node in OPC server's address space.
UABrowseParameters. Specifies which nodes will be returned.
Browses the nodes in server's address space. Starts from the specified node, and returns information about child nodes found. Browses the nodes in server's address space, given an endpoint descriptor, node descriptor, and browse parameters.
Syntax
'Declaration
 
<ExtensionAttribute()>
<NotNullAttribute()>
Public Overloads Shared Function BrowseOne( _
   ByVal client As IEasyUAClient, _
   ByVal endpointDescriptor As UAEndpointDescriptor, _
   ByVal nodeDescriptor As UANodeDescriptor, _
   ByVal browseParameters As UABrowseParameters _
) As UANodeElementCollectionResult
'Usage
 
Dim client As IEasyUAClient
Dim endpointDescriptor As UAEndpointDescriptor
Dim nodeDescriptor As UANodeDescriptor
Dim browseParameters As UABrowseParameters
Dim value As UANodeElementCollectionResult
 
value = IEasyUAClientExtension.BrowseOne(client, endpointDescriptor, nodeDescriptor, browseParameters)

Parameters

client
The client object that will perform the operation.
endpointDescriptor
Endpoint descriptor. Identifies the OPC-UA server.
nodeDescriptor
Node descriptor. Identifies the node in OPC server's address space.
browseParameters
UABrowseParameters. Specifies which nodes will be returned.

Return Value

Returns the node element collection that is the outcome of the browse.
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.

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