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Optional number of parameters and protected procedure
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Classes - VCX
Versions des environnements
Visual FoxPro:
VFP 8 SP1
OS:
Windows XP
Database:
Visual FoxPro
Divers
Thread ID:
01182425
Message ID:
01182616
Vues:
33
>>Hi everybody,
>>
>>I have a method in the class with optional number of parameters which calls a protected procedure of the same class. I'm passing parameters as is from one procedure to another. I guess the only way to know from this protected procedure how many parameters did I pass originally is to actually pass the number of parameters as a parameter.
>>
>>Do you see any other way here?
>>
>>Thanks in advance.
>
>by using the PCOUNT(), you could do something with a case statement... hoping nothing excessive like 10+ parameters...
>
>
>lParameters Parm1, Parm2, Parm3, Parm4
>
>do case
>case pcount() = 1
>  lAnswer = dodefault( Parm1 )
>
>case pcount() = 2
>  lAnswer = dodefault( Parm1, Parm2 )
>
>etc...
>
>endcase
>
>*/ then do whatever with the default lAnswer upon return
>
>
>
>This way, the ROOT function doesn't have to change based on a false 4 parameters coming in, if the current function was only passed 2.

The trick was that the public DoForm method calls Protected _DoForm method. So I can not use pcount it in and have to pass it from the public method as an additional parameter. That worked, but after reading all the responses I got I'm not so sure this technique is really good one.

Anyway, I may leave this as is for now, since I'm now facing more problems because I tried to combine two existing different frameworks into one.
If it's not broken, fix it until it is.


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