VBC09324 — Invalid type for WithEvents variable

Severity: Error · Family: VBC (static semantics / abstract syntax tree) · Source metadata: VBCompileErrorInfo

A WithEvents variable is declared as a type that cannot raise events to it.

MS-VBAL §5.2.3.1.2 WithEvents Variable Declarations requires the declared type to be a specific class that has at least one event member, and not the class defined by the class module that contains the declaration.

This code is raised by ClassModuleEventSemantics. The verbose detail names the variable, the type, and which of the rules it breaks.

How it is raised

Situation	Example	Resolution
The type is not a specific class.	`Private WithEvents Src As Object`, or `As Long`	Declare the variable as the class that raises the events: `Private WithEvents Src As Source`.
The class has no events.	`Private WithEvents Src As Silent`, where `Silent` declares none	Declare an event in the class, or handle nothing: remove `WithEvents`.
The type is the class of the module containing the declaration.	`Private WithEvents Me2 As Sink`, in the class module `Sink`	A class cannot handle its own events through a variable. Raise them with `RaiseEvent` and handle them in another class.

A type that is not resolved is not reported: it is not known to be wrong. Declaring a type that does not exist is reported where types are resolved.