OPC Studio User's Guide and Reference
CustomReference Property (Widget)



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.Widgets Namespace > Widget Class : CustomReference Property
Can be used to distinguish otherwise equal widgets.
Syntax
'Declaration
 
<BrowsableAttribute(False)>
<EditorBrowsableAttribute(EditorBrowsableState.Advanced)>
Public Property CustomReference As String
'Usage
 
Dim instance As Widget
Dim value As String
 
instance.CustomReference = value
 
value = instance.CustomReference
[Browsable(false)]
[EditorBrowsable(EditorBrowsableState.Advanced)]
public string CustomReference {get; set;}
[Browsable(false)]
[EditorBrowsable(EditorBrowsableState.Advanced)]
public:
property String^ CustomReference {
   String^ get();
   void set (    String^ value);
}

Property Value

The value of this property cannot be null (Nothing in Visual Basic).

The default value of this property is "" (String.Empty).

Exceptions
ExceptionDescription

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

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