>>>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.