OPC Studio User's Guide and Reference
IsOptional Property (_UAStructureField)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.DataTypeSchema.ComTypes Namespace > _UAStructureField Interface : IsOptional Property
Indicates if a data type field in a structure is optional.
Syntax
'Declaration
 
Property IsOptional As Boolean
'Usage
 
Dim instance As _UAStructureField
Dim value As Boolean
 
instance.IsOptional = value
 
value = instance.IsOptional
bool IsOptional {get; set;}
property bool IsOptional {
   bool get();
   void set (    bool value);
}

Property Value

The default value of this property is False.

Remarks

If the structure type is OpcLabs.EasyOpc.UA.DataTypeSchema.UAStructureType.Union, this property is ignored.

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.

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