OPC Studio User's Guide and Reference
IsNull Property (ValueTarget)



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.ComponentModel.Referencing Namespace > ValueTarget Class : IsNull Property
Determines whether this value target object is null.
Syntax
'Declaration
 

<BrowsableAttribute(False)>
Public ReadOnly Property IsNull As Boolean
'Usage
 

Dim instance As ValueTarget
Dim value As Boolean
 
value = instance.IsNull
[Browsable(false)]
public bool IsNull {get;}
[Browsable(false)]
public:
property bool IsNull {
   bool get();
}

Property Value

The default value of this property is True.

Remarks
The value target is null when its target component and extender provider are null, and the target path is empty.
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

ValueTarget Class
ValueTarget Members

 

 

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