>>>>I have a control class bases on the container. The hierarchy of the classes is as following:
>>>>Container - VFP class
>>>>MyBaseClass - based on VFP Container
>>>>MySpecificClass - based on MyBaseClass
>>>>
>>>>Now I need to change the size of the MySpecificClass (bases on some semaphore flag) so that this MySpecificClass is wider and the textbox inside of this class is wider. So I need to add the code to the INIT method of MySpecificClass, something like the following:
>>>>
>>>>
>>>>if file("my_semaphore")
>>>> this.width = this.width + 50
>>>> this.txt_box.width = this.txt_box.width + 50
>>>>endif
>>>>
>>>>
>>>>But of course I want the code in the MyBaseClass INIT to be fired. For example, would it correct the following?
>>>>
>>>>
>>>>dodefault()
>>>>if file("my_semaphore")
>>>> this.width = this.width + 50
>>>> this.txt_box.width = this.txt_box.width + 50
>>>>endif
>>>>
>>>>
>>>>And should dodefault() be before or after my "specific" code? Or it does not matter at all?
>>>>
>>>>TIA
>>>
>>>It depends what you want :-)
>>>Most of the cases it didn't matter where it is placed,
>>>but IF you want to cancel the INIT and have logic for this in your base class method you should carefully decide where to place this method:
>>>Sometimes you need this:
>>>
>>>lbReturn = DODEFAULT()
>>>** "specific" code and maybe change lbReturn
>>>RETURN lbReturn
>>>
>>>
>>>
>>>other time you can do this:
>>>
>>>** "specific" code
>>>RETURN DODEFAULT()
>>>
>>
>>Interesting. I have never seen the code "RETURN DODEFAULT()" but it makes sense. My base class has RETURN .F. in its INIT (in case of cancel).
>>
>>So now I am wondering, if I were to have the code as I put in my initial example (DODEFAULT() first, and then the custom code) and the code in the DODEFAULT() return .F., would the control still initialize?
>
>That's why I usually
>
>IF NOT DODEFAULT()
> RETURN .F.
>ENDIF
>
>before I add custom code.
Makes sense. Thank you.
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