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You are welcome....
Luis, Bien venido
Cheers
Carlos Antollini.
Sonork ID 100.10529 cantollini
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I have a #import for msado25.tlb in one file, and the namespace is defined as "ADO" . SO all stuff in this file has to be addressed as ADO::something. Now I had another database class that was referring to the ADO stuff as ADODB::. All was working fine until I rebuilt the project (Rebuild all). Now it told me that it didnt know what ADODB was, and finally I had to put my #import statement in that file as well, plus change all the ADODB's to ADO:: Question is, why in the world was it working fine until I rebuilt all? I cannot explain this!
Any clues?
Thanks,
ns
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Because the file that was using it earlier and was not rebuilt. So it had all the information it needed. Now ith your change when you did a rebuild you created a conflict.
Try and put your import in a single file and make sure that the file is included where ever it is needed rather than making multiple imports of the same library.
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How dangerous is it to have #import twice declared. Its not too clear to me how to get it consolidated to one statement. Ones in an ADOX class, and ones in an ADO class. I really dont see why I should put adox.h into ado.h, but it I'm playing with fire I'll work at this. So really, am I going to get in unexpected trouble here?
Thanks,
ns
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All of a sudden anywhere (really anywhere at all in valid places!) I put a breakp[oint in my program it says "breakpoint cannot be set, execution will stop at the beggining of the program" .Then the breakpoint goes white and indeed execution stops at some odd place. WHat can I do to get out of this situation?
thanks
ns
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close VC, delete your apps .NCB file, rebuild all.
-c
Greenspun's Tenth Rule of Programming:
"Any sufficiently complicated C or Fortran program contains an ad-hoc, informally-specified bug-ridden slow implementation of half of Common Lisp."
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Assume that when certain query is executed, the record set object will contain 20 results. But i want my record set object to contain results from 11 to 20 among all these. How can i do so ???
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I have never done this in VC++ before, however the ADO object should be essentially the same  . Here is a link on how you can page your recordset in ASP, again many of the ideas should be the same, such as the usage of the AbsolutePage, and PageCount properties.
Paging a recordset[^]
HTH
Nick Parker
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You need to use pagesize to 10... and move between pages and records...
Best Regards
Carlos Antollini.
Sonork ID 100.10529 cantollini
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I want to create a template class, with unlimited # parameters, basically I need a special template that is like a collection, but I can access each member directly.
I want to create something like this
class myclass : public mybaseclass
{
public:
myclass();
DWORD myvalue1;
DWORD myvalue2;
DWORD myvalue3;
};
I need to be able to have a different # of members "myvalue1" etc. each time.
the difficult part is that the members must also be used in a function, that is part of the template also
myclass::ReadMembers()
{
myvalue1=1;
... etc
}
so that I do not have to enter them again, I know macros let U do this kind of thing, but they do not work to well for this application so far.
Templates are foweful, but not enough, I even looked at BEGIN_MESSAGE_MAP macro from MFC, because that idea might do it, but it can't as far as I can see.
GRRR.... Maybe I need a 4GL language, not C++.
Conrad - conradb@adroit.co.za
Always do badly to start off, that way when you get the hang of it suddenly, everyone is surprised.
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Something like this should work (I don't have a compiler handy, so beware of errors):
template <int n> class C;
template <> class C<0>
{
public:
void read_members()
{
}
};
template <int n> class C: public C<n-1>
{
typedef C<n-1> super;
public:
int value;
void read_members()
{
value=1;
super::read_members();
}
};
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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I have a requirement to fill the listbox with 2 columns.
I know how to implement a listbox with single column?
Could someone tell me how to do it?
Thanks
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use a CListCtrl instead.
-c
Greenspun's Tenth Rule of Programming:
"Any sufficiently complicated C or Fortran program contains an ad-hoc, informally-specified bug-ridden slow implementation of half of Common Lisp."
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Thanks for a quick response. I will try listcontrol.
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I am getting an assertion failure in the last line of this function. When I click the 'Ignore' button, I am getting a message box with the message
'Unsupported operation was attempted'.
I donot have any clue to fix it?
Pl help me.
BOOL displaydlg::OnInitDialog()
{
CListCtrl *plistb = (CListCtrl *) GetDlgItem(IDC_LIST2);
LV_ITEM lvI;
// Initialize LV_ITEM members that are common to all items
lvI.mask = LVIF_TEXT | LVIF_PARAM | LVIF_STATE;
lvI.state = 0;
lvI.stateMask = 0;
lvI.iImage = 0;
CString str;
int i =0;
if (m_pSet1->IsOpen()) {
m_pSet1->Close();
}
m_pSet1->Open();
while (!m_pSet1->IsEOF()) {
lvI.iItem =i;
lvI.iSubItem = 0;
str = m_pSet1->m_Type;
lvI.pszText = (LPSTR)LPCTSTR(str);
lvI.cchTextMax = MAX_ITEMLEN;
lvI.lParam = (LPARAM) i;
if (plistb->InsertItem(&lvI) == -1)
AfxMessageBox(_T("ListSelectData::FillListCtrl error"), MB_OK);
i++;
m_pSet1->MoveNext();
}
return CDialog::OnInitDialog();
}
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are there any records in the recordset?
-c
Greenspun's Tenth Rule of Programming:
"Any sufficiently complicated C or Fortran program contains an ad-hoc, informally-specified bug-ridden slow implementation of half of Common Lisp."
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Yes, having 3 records.
If i comment out return CDialog::OnInitialUpdate() and return TRUE, then I am not getting this assertion failure. Only after the dailog with the listctrl filled with the records, the assertion failure appears.
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try this:
call CDialog::OnInitDialog first in your function (not last). then return FALSE.
-c
Greenspun's Tenth Rule of Programming:
"Any sufficiently complicated C or Fortran program contains an ad-hoc, informally-specified bug-ridden slow implementation of half of Common Lisp."
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what happens?
Greenspun's Tenth Rule of Programming:
"Any sufficiently complicated C or Fortran program contains an ad-hoc, informally-specified bug-ridden slow implementation of half of Common Lisp."
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Getting an assertion failure immediately. If I click 'Ignore' button, an message box appears with msg 'unsupported operation was attempted'
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can you step into the function?
Greenspun's Tenth Rule of Programming:
"Any sufficiently complicated C or Fortran program contains an ad-hoc, informally-specified bug-ridden slow implementation of half of Common Lisp."
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I fixed the problem.
The assertion failure is thrown when calling DoDataExchange();
CDialog::OnInitialUpdate() calling CDialog::UpdateData(FALSE) calling CDialog::DoDataExchange(..).
Actually I had an button control in the dialog and an corresponding button variable in the Dialog class and hence the DoDataExchange() had an line containing button variable. Then I removed the Button variable from the resource. But didnot remove from the code.
I tried to remove the button variable from the Dialogs class and DoDataExchange() and thus it worked.
Thanks for your help. Sorry for the trouble.
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Hello,
I would like to send a mail automaticaly from my application in vc++ with a file in attachement.
What's the good way to do it ?
Thanks in advance
DD
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