>I want to create a command button class. I have created 2 properties
>cform and cvalue, so In the click method, I put the coding like this:-
>
>retval=" "
>do form this.cform
>this.cvalue = retval
>
>Therefore, When I use this class in the form, I just put fstock to the cform, and cvalue = thisform.txtstock.value. But It fail for me to call form (fstock) why? coding will be appreciated. Thanks
>I am using vfp 5.00
>
>Sorry for english.

You should use
do form (this.cform)

If the retval is a value which the form should return, it makes sense to make the form that you launch Modal, and use

DO FORM (this.cform) TO this.cvalue

You should return the value in the form.unload() like:
RETURN somevalue