VBC09345 — Invalid use of property

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

A property that can only be read is assigned with Set.

The class declares a Property Get of that name and no Property Set: the property can be read, and there is nothing that sets it.

MS-VBA reports the same error, with the same message (recorded in Excel).

How it is raised

Situation	Example	Resolution
A `Set` of a `Property Get` with no `Property Set`.	`Set c.Value = Nothing`	Add a `Property Set Value` to the class.
A `Set` of a document module, such as `ThisWorkbook` or `Sheet1`. The host gives each of its documents a property of that name, which no `Set` can assign.	`Set Sheet1 = Nothing`	Assign to a variable of your own: `Set ws = Sheet1`.
A `Set` of a function, or of a property of a module, that returns neither a `Variant` nor an object; or of `Err`.	`Set Total = Nothing` of a `Function Total() As Long`, `Set Err = Nothing`	Assign to a variable of your own.

Through an object declared As Object or Variant, the assignment compiles, and raises error 450 when it runs.