OPC Studio User's Guide and Reference
DefaultTo Method (UserIdentityExtension)



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.IdentityModel.User.Extensions Namespace > UserIdentityExtension Class : DefaultTo Method
Specifies user's identity, using one or more token infos, such as anonymous, username, Kerberos, or X.509 certificate.

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

User identity with default token infos.

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

Defaults this UserIdentity to other user identity.
Syntax
'Declaration
 
<ExtensionAttribute()>
<NotNullAttribute()>
Public Shared Function DefaultTo( _
   ByVal userIdentity As UserIdentity, _
   ByVal value As UserIdentity _
) As UserIdentity
'Usage
 
Dim userIdentity As UserIdentity
Dim value As UserIdentity
Dim value As UserIdentity
 
value = UserIdentityExtension.DefaultTo(userIdentity, value)
[Extension()]
[NotNull()]
public static UserIdentity DefaultTo( 
   UserIdentity userIdentity,
   UserIdentity value
)
[Extension()]
[NotNull()]
public:
static UserIdentity^ DefaultTo( 
   UserIdentity^ userIdentity,
   UserIdentity^ value
) 

Parameters

userIdentity
Specifies user's identity, using one or more token infos, such as anonymous, username, Kerberos, or X.509 certificate.

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

value
User identity with default token infos.

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

Return Value

Returns the new, modified user identity.

This method never returns null (Nothing in Visual Basic).

This return value of this method should not be ignored.

Remarks

Take care when using this method with user identities that can be aliased. You may get different results depending on whether you resolve the aliases before or after calling this method.

This is an extension method (info: C#, VB.NET). In languages that have support for extensions methods (such as C# and VB.NET), you can use the extension method as if it were a regular method on the object that is its first parameter. In other languages (such as with Python.NET), you will call the extension as a static method, and pass it the object on which it acts as its first parameter.

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