ISSUE #1043
Class instancing was changed to public.
Description
In Visual Basic 6.0, instance creation was controlled by the Instancing property of a class, which set both the access level (Public, Private, Friend) of a class and the way an object could be created. In Visual Basic .NET, the Instancing property is no longer supported; you control the way that an object can be created by setting the access level of the constructor (Sub New):
| Visual Basic 6.0 Instancing |
Visual Basic .NET |
| Private |
Class Access attribute: Private |
| PublicNotCreatable |
Class Access attribute: Public. Declare the constructor Friend (Friend Sub New) |
| MultiUse |
Class Access attribute: Public. Declare the constructor Public (Public Sub New) |
There is no direct equivalent for SingleUse, GlobalSingleUse, or GlobalMultiUse instancing in Visual Basic .NET; when the Instancing property is set to one of these values, the access level of both the class and the constructor are set to Public during upgrade.
Recommendations
Check the code. The behavior may be slightly different than it was in Visual Basic 6.0, and you may need to change the access level of the class and/or the constructor.
