[fpc-pascal] TBufDataSet: ApplyUpdates

[Marcos Douglas]

On Thu, May 3, 2012 at 2:52 AM, LacaK <lacak at zoznam.sk> wrote:
>
>>
>> I saw the TBufDataSet.ApplyUpdates and it calls ApplyRecUpdate.
>> The ApplyRecUpdate just raises an exception...
>>
>
> Yes it is virtual method, which can be overriden by descendants
>
>
>> There is some implementation, in some place, to work with ApplyUpdates
>> (like a Delphi's TClientDataSet)?
>>
>
> Yes, see in sqldb.pp at TCustomSQLQuery

Yeah... I did not know that the TCustomSQLQuery descended of TCustomBufDataSet.
Well, I tried to use ApplyUpdates with TSQLQuery and TMSSQLConnection
(SQLServer).
I put a DBGrid, DataSource... blablabla... I edited the record on the
Grid and click in Apply button (ApplyUpdates(0))

ERROR 20019:
"Attempt to initiate a new SQL Server operation with results pending."

On the internet I found this:
http://www.sybase.com.br/detail?id=897#1825

I don't have other SGBD now to test so, I would like to know if this
is a problem in TMSSQLConnection or in ApplyUpdates?

Thanks,

Marcos Douglas