'Declaration
<ExtensionAttribute()> <CanBeNullAttribute()> Public Shared Function FindServerNode( _ ByVal server As IEasyUAServer, _ ByVal nodeDescriptor As UANodeDescriptor _ ) As UAServerNode
'Usage
Dim server As IEasyUAServer Dim nodeDescriptor As UANodeDescriptor Dim value As UAServerNode value = IEasyUAServerExtension.FindServerNode(server, nodeDescriptor)
[Extension()] [CanBeNull()] public static UAServerNode FindServerNode( IEasyUAServer server, UANodeDescriptor nodeDescriptor )
[Extension()] [CanBeNull()] public: static UAServerNode^ FindServerNode( IEasyUAServer^ server, UANodeDescriptor^ nodeDescriptor )
Parameters
- server
- The server object that will perform the operation.
The value of this parameter cannot be
null
(Nothing
in Visual Basic). - nodeDescriptor
- The node descriptor to be searched for.
Because the UANodeDescriptor has implicit conversions from OpcLabs.EasyOpc.UA.AddressSpace.UANodeId, OpcLabs.EasyOpc.UA.AddressSpace.UANodeElement, OpcLabs.EasyOpc.UA.Navigation.UABrowsePath and System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a OpcLabs.EasyOpc.UA.AddressSpace.UANodeId object (representing the Id of the OPC UA node), a node element object (from OPC UA browsing), OpcLabs.EasyOpc.UA.Navigation.UABrowsePath object (representing OPC UA absolute browse path), or a string (with expanded node Id text) in place of this parameter, and the corresponding node descriptor will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the UANodeDescriptor.FromString, UANodeDescriptor.FromUABrowsePath, UANodeDescriptor.FromUANodeElement or UANodeDescriptor.FromUANodeId static method instead.
If you are using OPC Wizard (for server development), an implicit conversion from OpcLabs.EasyOpc.UA.NodeSpace.UAServerNode can be used in the same way to simply pass the server node in place of this parameter, which will use its OpcLabs.EasyOpc.UA.NodeSpace.UAServerNode.EffectiveNodeDescriptor property for the operation.
The value of this parameter cannot be
null
(Nothing
in Visual Basic).
Return Value
null
.
This method can return null
(Nothing
in Visual Basic).