'DeclarationPublic Property NodeDescriptor As DANodeDescriptor
'UsageDim instance As DANodeArguments Dim value As DANodeDescriptor instance.NodeDescriptor = value value = instance.NodeDescriptor
public DANodeDescriptor NodeDescriptor {get; set;}
public: property DANodeDescriptor^ NodeDescriptor { DANodeDescriptor^ get(); void set ( DANodeDescriptor^ value); }
The value of this property cannot be null (Nothing in Visual Basic).
| Exception | Description |
|---|---|
| System.ArgumentNullException |
A 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. |
Because the OpcLabs.EasyOpc.DataAccess.DANodeDescriptor has an implicit conversion from System.String and OpcLabs.EasyOpc.DataAccess.AddressSpace.DANodeElement, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a string (representing the qualified name of the node), or a OpcLabs.EasyOpc.DataAccess.AddressSpace.DANodeElement object (result from OPC browsing), in place of OpcLabs.EasyOpc.DataAccess.DANodeDescriptor value when setting this property, and the corresponding OPC DA node descriptor will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the FromString or FromDANodeElement static method instead.