Article View: borland.public.cppbuilder.database.ado
Article #4124Sample : connect to database Access - what`s wrong this code?
From: Slava Sh.
Date: Thu, 21 Mar 2002 11:12
Date: Thu, 21 Mar 2002 11:12
165 lines
5444 bytes
5444 bytes
SOS ! ( . . . _ _ _ . . .)
Help !!!
VARIANT1
~~~~~~~~~
Working code:
===========
void __fastcall TForm1::Button1Click(TObject *Sender)
{
//
// ����������
//
try
{
if(DM->ADOConnection->Connected == true)
{
DM->ADOConnection->Close();
}
DM->ADOConnection->ConnectionTimeout = 15;
DM->ADOConnection->LoginPrompt = false;
//
ConnectionString =
"Provider=Microsoft.Jet.OLEDB.4.0;Persist Security Info=False;Data
Source=C:\\WORK\\C_Project\\BCB5\\testADO\\Data\\cat22.mdb";
//
DM->ADOConnection->ConnectionString = ConnectionString;
//
DM->ADOConnection->Open("Admin", "");
//
DM->CATADOTable->Connection = DM->ADOConnection;
DM->CATADOTable->Open();
DM->RISADOTable->Connection = DM->ADOConnection;
DM->RISADOTable->Open();
DM->DETADOTable->Connection = DM->ADOConnection;
DM->DETADOTable->Open();
DM->SEDADOTable->Connection = DM->ADOConnection;
DM->SEDADOTable->Open();
DM->UZLADOTable->Connection = DM->ADOConnection;
DM->UZLADOTable->Open();
}
catch(EOleException &E)
{
Application->MessageBox(
"��������� �������������� �������� ��� ���������� � ����� ������ !",
"����������� ������",
MB_OK + MB_ICONSTOP + MB_SYSTEMMODAL);
}
}
VARIANT2:
~~~~~~~~~
NOT WORKING CODE (ERROR -> "C:\WORK\C_Project\BCB5\testADO\Data\cat22.mdb'
is not valid path)
============================================================================
====
note: path exist !!!
void __fastcall TForm1::Button1Click(TObject *Sender)
{
//
// ����������
//
try
{
if(DM->ADOConnection->Connected == true)
{
DM->ADOConnection->Close();
}
DM->ADOConnection->ConnectionTimeout = 15;
DM->ADOConnection->LoginPrompt = false;
//
// Get current Dir
//
GetCurrentDirectory(MAX_PATH, CurPath);
PathToDatabase = ExtractFilePath(CurPath) + "\Data";
FileNameOfDatabase = "cat22.mdb";
PathToDatabase += "\\" + FileNameOfDatabase;
CurPath[0] = '\0';
strcpy(CurPath, PathToDatabase.c_str());
TempPath[0] = '\0';
int j = 0;
//
// add '\' + '\'
//
for(int i = 0; i <= strlen(CurPath) - 1; i++)
{
TempPath[j] = CurPath[i];
if(TempPath[j] == '\\')
{
j++;
strcat(TempPath, "\\");
}
j++;
}
TempPath[j] = '\0';
//
// TempPath[] = >>>> "C:\\WORK\\C_Project\\BCB5\\testADO\\Data\\cat22.mdb";
//
ConnectionString= "Provider=Microsoft.Jet.OLEDB.4.0;Persist Security
Info=False;Data Source=";
ConnectionString += AnsiString(TempPath);
//
DM->ADOConnection->ConnectionString = ConnectionString;
//
if(GetFileAttributes(TempPath) == 0xFFFFFFFF)
{
Application->MessageBox(
"File not exist !",
TempPath,
MB_OK+MB_SYSTEMMODAL);
}
else
{
Application->MessageBox(
"OK - try to connect...",
TempPath,
MB_OK+MB_SYSTEMMODAL);
//
// try to connect (file exist !!!)
//
DM->ADOConnection->Open("Admin", "");
//
DM->CATADOTable->Connection = DM->ADOConnection;
DM->CATADOTable->Open();
DM->RISADOTable->Connection = DM->ADOConnection;
DM->RISADOTable->Open();
DM->DETADOTable->Connection = DM->ADOConnection;
DM->DETADOTable->Open();
DM->SEDADOTable->Connection = DM->ADOConnection;
DM->SEDADOTable->Open();
DM->UZLADOTable->Connection = DM->ADOConnection;
DM->UZLADOTable->Open();
}
catch(EOleException &E)
{
Application->MessageBox(
"��������� �������������� �������� ��� ���������� � ����� ������ !",
"����������� ������",
MB_OK + MB_ICONSTOP + MB_SYSTEMMODAL);
}
}
What`s wrong in VARIANT 2?
Slava
Technical Details
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X-Google-Language: ENGLISH,ASCII X-Google-Thread: 10698b,cf9389e373692e47,start X-Google-Attributes: gid10698b,public X-Google-ArrivalTime: 2002-03-21 03:31:33 PST From: "Slava Sh." <slava@space.com> Newsgroups: borland.public.cppbuilder.database.ado Subject: Sample : connect to database Access - what`s wrong this code? Date: Thu, 21 Mar 2002 14:12:55 +0300 Lines: 167 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 NNTP-Posting-Host: 195.161.129.83 Message-ID: <3c99c030_1@dnews> X-Trace: dnews 1016709168 195.161.129.83 (21 Mar 2002 03:12:48 -0800) Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-01!supernews.com!207.217.77.43.MISMATCH!newsfeed1.earthlink.net!newsfeed2.earthlink.net!newsfeed.earthlink.net!newsfeed0.news.atl.earthlink.net!news.atl.earthlink.net!out.nntp.be!propagator-SanJose!in.nntp.be!newsfeed01.tsnz.net!newsfeeds.ihug.co.nz!ihug.co.nz!dnews