Re: CBDVariant and GetFieldValue

From:
"Jonathan Wood" <jwood@softcircuits.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Thu, 18 Dec 2008 13:29:20 -0700
Message-ID:
<uHwTT9UYJHA.4072@TK2MSFTNGP02.phx.gbl>
If you simply hold the mouse over an occurance of CDBVariant::m_pstring you
will see what the data type is. Are you using a Unicode build? Do they
match?

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com

<aloha826@gmail.com> wrote in message
news:eb0ef428-3315-4c93-9b37-2111ad4c4453@l33g2000pri.googlegroups.com...

Hi ,

CString qStr;
CString cText1;
CString cText2;
CString cText3;

qStr.Format("SELECT ID, Text1, Text2, Text3 FROM myTable WHERE ID IN
(SELECT MAX(ID) FROM myTable)");
// assume there is one record return, ID (int), Text1- Text 3 (varchar
nullable),

if (rs.Open(CRecordset::forwardOnly, _T(qStr)))
{
CDBVariant pID;
CDBVariant StrText1;
CDBVariant StrText2;
CDBVariant StrText3;

rs.GetFieldValue((short)0, pID, SQL_C_SLONG);
MyID = pID.m_lVal;

rs.GetFieldValue((short)1, StrText1, SQL_C_CHAR );
cText1.Format("%s",strText1.m_pstring);

rs.GetFieldValue((short)2, StrText2, SQL_C_CHAR );
cText2.Format("%s",strText2.m_pstring);

rs.GetFieldValue((short)3, StrText3, SQL_C_CHAR );
cText3.Format("%s",strText3.m_pstring);

rs.Close();
}
..
// load into edit box
SetDlgItemText(IDC_EDIT_TEXT1, cText1);
SetDlgItemText(IDC_EDIT_TEXT2, cText2);
SetDlgItemText(IDC_EDIT_TEXT3, cText3);

Is this the correct way to retrieve the varchar value from table and
load into edit box ? I got funny character appear in edit box. Also
Text1 or Text2 or Text3 can be NULL as well.

Please help.

Regards,
Kenji

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