>>>>Why does the assign method fire when a property with an assign method is used in a math expression on the right side of an assignment statement? This happens in VFP 6 and 7.
>>>>

>>>>DEFINE CLASS MyCLASS as Custom
>>>>	PROCEDURE height_assign
>>>>		LPARAMETERS vNewVal
>>>>		*To do: Modify this routine for the Assign method
>>>>		THIS.Height = m.vNewVal
>>>>		WAIT WINDOW "Assignment fired - value "+ STR(vnewval)+".  Press any key to continue.."
>>>>	ENDPROC
>>>>ENDDEFINE
>>>>
>>>>* Test program to show anomally
>>>>PROCEDURE test
>>>>
>>>>* create class
>>>>o = CREATEOBJECT("myclass")
>>>>* Wait window should appear in assign method
>>>>o.height = 1
>>>>* wait window should not appear in assign method
>>>>y= o.height+2
>>>>
>>>>Return
>>>>

>>>
>>>Just been playing, happens for width, top & left too
>>
>>Thanks... I will pass that along to the MS guys
>
>Nor is it limited to custom classes, I get similar effect with classes based on Command buttons & Edit boxes too.

I asked Mike Stewart of MS to take a look, and have received no response... I'll try and let you know when they get back with me about it.