QuickOPC User's Guide and Reference
FieldName Property (UnionData)



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.DataTypeModel Namespace > UnionData Class : FieldName Property
Determines which of the data fields is in use.
Syntax
'Declaration
 
<DefaultValueAttribute("")>
<NotNullAttribute()>
Public Property FieldName As String
'Usage
 
Dim instance As UnionData
Dim value As String
 
instance.FieldName = value
 
value = instance.FieldName
[DefaultValue("")]
[NotNull()]
public string FieldName {get; set;}
[DefaultValue("")]
[NotNull()]
public:
property String^ FieldName {
   String^ get();
   void set (    String^ value);
}
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