OPC Studio User's Guide and Reference
TypeDefinition Property (IUANodeElement)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.AddressSpace Namespace > IUANodeElement Interface : TypeDefinition Property
Type Id of the type of this node.
Syntax
'Declaration
 
<NotNullAttribute()>
ReadOnly Property TypeDefinition As UANodeId
'Usage
 
Dim instance As IUANodeElement
Dim value As UANodeId
 
value = instance.TypeDefinition
[NotNull()]
UANodeId TypeDefinition {get;}
[NotNull()]
property UANodeId^ TypeDefinition {
   UANodeId^ get();
}

Property Value

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

The default value of this property is UANodeId.Null.

Because there is an implicit conversion from UANodeId to OpcLabs.EasyOpc.UA.UANodeDescriptor, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use the returned UANodeId in any place where the OpcLabs.EasyOpc.UA.UANodeDescriptor is expected as input, and the corresponding node descriptor will be constructed automatically.

Also, because the UANodeId has an implicit conversion to System.String, and it converts to the expanded text of the node Id (UANodeId.ExpandedText), in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use the returned UANodeId in any place where expanded text of a node Id (a string) is expected as input, and the corresponding expanded text will be taken automatically from the node Id.

Remarks
typeDefinition:
"Type definitions are only available for the NodeClasses Object and Variable. For all other NodeClasses a null NodeId shall be returned."

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