OPC Studio User's Guide and Reference
DAPropertyDescriptor Constructor(DAPropertyDescriptor)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess Namespace > DAPropertyDescriptor Class > DAPropertyDescriptor Constructor : DAPropertyDescriptor Constructor(DAPropertyDescriptor)
A property descriptor object to be copied from.

Because the DAPropertyDescriptor has an implicit conversion from System.Int64, DAPropertyIds, System.Xml.XmlQualifiedName, System.String, DAPropertyId and OpcLabs.EasyOpc.DataAccess.AddressSpace.DAPropertyElement, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a such values in place of this parameter, and the corresponding OPC DA property descriptor will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the FromInt64, FromDAPropertyIds, FromXmlQualifiedName, FromDAPropertyId or FromDAPropertyElementstatic method instead.

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

Initializes a new copy of the DAPropertyDescriptor object.
Syntax
'Declaration
 
Public Function New( _
   ByVal propertyDescriptor As DAPropertyDescriptor _
)
'Usage
 
Dim propertyDescriptor As DAPropertyDescriptor
 
Dim instance As New DAPropertyDescriptor(propertyDescriptor)
public DAPropertyDescriptor( 
   DAPropertyDescriptor propertyDescriptor
)
public:
DAPropertyDescriptor( 
   DAPropertyDescriptor^ propertyDescriptor
)

Parameters

propertyDescriptor
A property descriptor object to be copied from.

Because the DAPropertyDescriptor has an implicit conversion from System.Int64, DAPropertyIds, System.Xml.XmlQualifiedName, System.String, DAPropertyId and OpcLabs.EasyOpc.DataAccess.AddressSpace.DAPropertyElement, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a such values in place of this parameter, and the corresponding OPC DA property descriptor will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the FromInt64, FromDAPropertyIds, FromXmlQualifiedName, FromDAPropertyId or FromDAPropertyElementstatic method instead.

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

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