Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
Return DoDefault() surprise
Message
From
18/03/2011 12:59:54
 
 
To
All
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Title:
Return DoDefault() surprise
Environment versions
Visual FoxPro:
VFP 9 SP2
Database:
Visual FoxPro
Miscellaneous
Thread ID:
01504135
Message ID:
01504135
Views:
156
Some of you probably already knew this, but it caught me off guard...

I have a sublass of a base class, and in a method on the subclass I added local code which did some work, and then invoked DoDefault() to active the base class code and then I was attempting to Return (from the subclass) the return value that I got back from the base class default code.
Subclass.SomeMethod()
 
   Lparameters tcSomeString
 
   *Misc code here
 
   Return DoDefault(tcSomeString)

Baseclass.SomeMethod()
 
   Lparameters tcSomeString
 
   *Misc code here
 
   Return _tally

So, you can see that baseclass was returning an integer (_tally), which I was attempting to return again in the subclass, but instead the subclass was returning .T. ( a bool). I did not know this is what would happen.

Here is the change I had to make for it work correctly.
Subclass.SomeMethod()
 
   Lparameters tcSomeString
 
   Local lnReturn
 
   *Misc code here
 
   lnReturn = DoDefault(tcSomeString)
 
   Return lnReturn
Next
Reply
Map
View

Click here to load this message in the networking platform