VBC09325 — Invalid event name

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

The name of an Event declaration contains an underscore.

MS-VBAL §5.2.4.3 Event Declaration forbids an underscore (U+005F) in the name of an event. An event is handled by a procedure named VariableName_EventName, and the underscore is where the variable's name ends: a name with one in it would be ambiguous.

This code is raised by ClassModuleEventSemantics. The verbose detail names the event.

How it is raised

Situation	Example	Resolution
An event name has an underscore.	Public Event Data_Changed()	Rename the event without it: Public Event DataChanged().

Notes

The same module may not declare two events of one name either, whatever the case; the second is reported as a duplicate declaration (VBC09303).

An event name can be the name of a module variable, constant, enum member or procedure of the same module.

See also

• VBC09324 — a WithEvents variable of a type that cannot raise events
• VBC09326 — a procedure named for an event is not a valid handler
• RD-VBAL §2.6.2 Semantic Compilation Errors
• RD-VBAL §5.2.4.3 Event Declaration

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⏮️ VBC09324 Invalid type for WithEvents variable | ⏭️ VBC09326 Invalid event handler

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