Vtable.FieldCount problem was: Illegal Cast Exception

[Steve Albin]

On 10/17/09 at 3:59 AM, ruslan_zasukhin at valentina-db.com (Ruslan 
Zasukhin) wrote:

>>I just upgraded to V4RB 4.3 from 4.1.  Without changing anything
>>in my project, I built the Mac version and ran.  I'm getting
>>Illegal Cast Exceptions on VarChar fields in lots of places
>>where I use an index as so:
>>return cursor.VarCharField(templateFieldCount+2).value
>>and like this:
>
>*********************
>>return VVarChar(cursor.Field(nTplPersonnelFldOffset+1)).GetString
>
>Why you write it in such way?
>I'd write it as
>return cursor.VarCharField(nTplPersonnelFldOffset+1).GetString
>
>Even better. GetString is method of VField. Right?
>Then why to ask for VarChar ?
>It is enough
>
>return cursor.Field(nTplPersonnelFldOffset+1).GetString
>
>
>

Hi Ruslan,

Yes, I agree that some of my code is poorly written.  Some of it 
goes back to Valentina 1.  I am updating my code to improve it 
as I go along.   But this isn't the problem I have now.  In my 
follow up email, I mentioned that the problem was the result of 
an incorrect result returned by VTable.FieldCount.  What about that?

My project worked fine using V4RB 4.1.  I changed nothing but 
installed V4RB 4.3 and rebuilt the project.  Why would 
FieldCount work in 4.1 and not in 4.3?  I see nothing in release 
notes mentioning a change to FieldCount.

I will create a small project and submit to Mantis.

Steve

-- 
Steve Albin - Montclair, NJ
http://www.jazzdiscography.com/
http://www.steve-albin.com/