Following on Larry's coattails,

>>IF TYPE("ThisForm.ActiveControl.Name") = "C" will return .T. if ActiveControl is a valid object with a Name property. Do not use Vartype() for this as it is not robust enough for the checking and it will throw an error.

The same can be done with variables.>>


While
TYPE("ThisForm.ActiveControl.Name") = "C"

is functionally similar to
TYPE("ThisForm.ActiveControl") = "O"

testing agains the .Name property of an object is more robust than testing against the object itself. It sure looks weird though.

Regards,
Thom C.