OPC Studio User's Guide and Reference
Keys Property (DAPropertyElementCollection)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess.AddressSpace Namespace > DAPropertyElementCollection Class : Keys Property
A collection of property descriptors that are keys to the condition elements in the dictionary.
Syntax
'Declaration
 
<CanBeNullAttribute()>
<DefaultValueAttribute("")>
<ElementsNotNullAttribute()>
<XmlIgnoreAttribute()>
Public ReadOnly Property Keys As ICollection(Of DAPropertyDescriptor)
'Usage
 
Dim instance As DAPropertyElementCollection
Dim value As ICollection(Of DAPropertyDescriptor)
 
value = instance.Keys
[CanBeNull()]
[DefaultValue("")]
[ElementsNotNull()]
[XmlIgnore()]
public ICollection<DAPropertyDescriptor> Keys {get;}
[CanBeNull()]
[DefaultValue("")]
[ElementsNotNull()]
[XmlIgnore()]
public:
property ICollection<DAPropertyDescriptor^>^ Keys {
   ICollection<DAPropertyDescriptor^>^ get();
}

Property Value

Returns a collection of keys. Returns null reference if the collection has not been yet allocated.
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