Connectivity Software User's Guide and Reference
SetNodeDescriptors Method (_DAItemDialog)



OpcLabs.EasyOpcForms Assembly > OpcLabs.EasyOpc.DataAccess.Forms.Browsing.ComTypes Namespace > _DAItemDialog Interface : SetNodeDescriptors Method

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

The individual elements of the parameter value can be null (Nothing in Visual Basic).

Array of node descriptor objects.
Syntax
'Declaration
 
Sub SetNodeDescriptors( _
   ByRef nodeDescriptors() As DANodeDescriptor _
) 
'Usage
 
Dim instance As _DAItemDialog
Dim nodeDescriptors() As DANodeDescriptor
 
instance.SetNodeDescriptors(nodeDescriptors)
void SetNodeDescriptors( 
   ref DANodeDescriptor[] nodeDescriptors
)
void SetNodeDescriptors( 
   array<DANodeDescriptor^>^% nodeDescriptors
) 

Parameters

nodeDescriptors

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

The individual elements of the parameter value can be null (Nothing in Visual Basic).

Remarks
Intended for use from Visual Basic 6.0.

This member is not compatible with VBScript.

This member or type is for use from COM. It is not meant to be used from .NET or Python. Refer to the corresponding .NET member or type instead, if you are developing in .NET or Python.

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.

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