QuickOPC User's Guide and Reference
IsOptional Property (_DataField)



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.DataTypeModel.ComTypes Namespace > _DataField Interface : IsOptional Property
Determines whether the field may be omitted from the encoded data.
Syntax
'Declaration
 

Property IsOptional As Boolean
'Usage
 

Dim instance As _DataField
Dim value As Boolean
 
instance.IsOptional = value
 
value = instance.IsOptional
bool IsOptional {get; set;}
property bool IsOptional {
   bool get();
   void set (    bool value);
}
Remarks
Whether or not the field is encoded may depend on other factors, such as the value of a switch field.
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

Reference

_DataField Interface
_DataField Members

 

 

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