>>>>>>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.
>
>Sometimes you want default code to be executed after the custom code.
You know; after further testing I found that my custom code should go
before the DODEFAULT(). Good thing I tested it before shipping update to the customer :)
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