OLEDB stored proc question

[udo polder]

hello all
i am having some problems calling a stored procedure on MSSQL2000 from VC7.
i have build up an OLEDB-Consumer (for stored Procs) via vizzard and
modifyed it a little, to bring in the cloumn and param map.
when i start the program i can call OpenAll() and the system gets the
recordset from the DB. but data is corrupted :( also the recordcount DOSE
match the recordcount from the stored proc (if i add a entry to the table i
get one more corruped trace)).

as i am new to oledb/VC i would like to post the important parts of the code
and i would be very lucky if someone tells me what i am doing wrong :)

i put some comments to the code marked with @@@

first the stored proc:
===========
alter PROCEDURE testCombined @par int
AS
set nocount on
create table #temp_T(daValue int, daText varchar(255))
insert into #temp_T values (1, 'hallo')
insert into #temp_T select T1_value, T1_text from T_TEST_1
insert into #temp_T select T2_value, T2_text from T_TEST_2
select * from #temp_T
/*return(0)*/
===========

now the C++ Class (parts of it at least):

===================
class CtestCombinedAccessor
{
public:
TCHAR m_name[255]; @@@Added the member_variables
LONG m_value;

@@@ added the variable mapping
BEGIN_COLUMN_MAP( CtestCombinedAccessor)
COLUMN_ENTRY( 1, m_name )
COLUMN_ENTRY( 2, m_value )
END_COLUMN_MAP( )

LONG m_RETURN_VALUE;
LONG m_IN_PAR_id;

DEFINE_COMMAND_EX(CtestCombinedAccessor, L"{ ? = CALL
dbo.testCombined(?) }")

BEGIN_PARAM_MAP(CtestCombinedAccessor)
SET_PARAM_TYPE(DBPARAMIO_OUTPUT)
COLUMN_ENTRY(1, m_RETURN_VALUE)

SET_PARAM_TYPE(DBPARAMIO_INPUT)
COLUMN_ENTRY(2, m_IN_PAR_id)
END_PARAM_MAP()

void GetRowsetProperties(CDBPropSet* pPropSet){
pPropSet->AddProperty(DBPROP_CANFETCHBACKWARDS, true,
DBPROPOPTIONS_OPTIONAL);
pPropSet->AddProperty(DBPROP_CANSCROLLBACKWARDS, true,
DBPROPOPTIONS_OPTIONAL);
}

HRESULT OpenDataSource(){
.....
};
===================

and now the class itself
===================
//class CtestCombined : public CCommand<CAccessor<CtestCombinedAccessor>,
CNoRowset >
class CtestCombined : public CCommand<CAccessor<CtestCombinedAccessor> > @@@
removed the CNoRowset
{
public:
HRESULT OpenAll()
{
HRESULT hr;
hr = OpenData
......
HRESULT OpenRowset(DBPROPSET *pPropSet = NULL)
{
bool hasRows = false;
long rowsAffected = 0;

@@@changed the Open() to set defaultbinding to false
@@@i think this is produces the problem but if i set it to true then the
first call to MoveFirst results in
@@@ an DB_S_ERRORSOCCURRED :(
HRESULT hr = Open(m_session, NULL, pPropSet,NULL, DBGUID_DEFAULT, false);
return hr;
}
.....
};
===================

and now the code in the dialog which calls the function:

===================
CtestCombined myVar;
myVar.OpenAll();

if (myVar.MoveFirst() == S_OK){
do{
ATLTRACE("value %i\tvalue%s\n", myVar.m_value, myVar.m_name);
}while(myVar.MoveNext() == S_OK);
}
===================
this results in:
===================
....
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'dbCombine1.exe': Unloaded 'C:\WINNT\system32\ntdsapi.dll'
===============
please help :)

PS. any tips for books recording oledb would be very welcome :)

thanks udo