OPC Studio User's Guide and Reference
DAPropertyDescriptor Property (OpcBrowseNodeDescriptor)



OpcLabs.EasyOpcForms Assembly > OpcLabs.EasyOpc.Forms.Browsing Namespace > OpcBrowseNodeDescriptor Class : DAPropertyDescriptor Property
Contains information necessary to identify an OPC property.
Syntax
'Declaration
 
<DataMemberAttribute()>
Public Property DAPropertyDescriptor As DAPropertyDescriptor
'Usage
 
Dim instance As OpcBrowseNodeDescriptor
Dim value As DAPropertyDescriptor
 
instance.DAPropertyDescriptor = value
 
value = instance.DAPropertyDescriptor
[DataMember()]
public DAPropertyDescriptor DAPropertyDescriptor {get; set;}
[DataMember()]
public:
property DAPropertyDescriptor^ DAPropertyDescriptor {
   DAPropertyDescriptor^ get();
   void set (    DAPropertyDescriptor^ value);
}

Property Value

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

Remarks

Because the OpcLabs.EasyOpc.DataAccess.DAPropertyDescriptor has an implicit conversion from System.Int64, OpcLabs.EasyOpc.DataAccess.DAPropertyIds, System.Xml.XmlQualifiedName, System.String, OpcLabs.EasyOpc.DataAccess.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 OpcLabs.EasyOpc.DataAccess.DAPropertyDescriptor value when setting this property, 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 OpcLabs.EasyOpc.DataAccess.DAPropertyDescriptor.FromInt64, OpcLabs.EasyOpc.DataAccess.DAPropertyDescriptor.FromDAPropertyIds, OpcLabs.EasyOpc.DataAccess.DAPropertyDescriptor.FromXmlQualifiedName, OpcLabs.EasyOpc.DataAccess.DAPropertyDescriptor.FromDAPropertyId or OpcLabs.EasyOpc.DataAccess.DAPropertyDescriptor.FromDAPropertyElementstatic 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