VC, A problem on loading file using CFile

Kelvin Leun
#1 / 4

A problem on loading file using CFile

I little problem in my program:
In the Document class:
void CMainDoc::Serialize(CArchive& ar)
{
if (ar.IsStoring())
{
// TODO: add storing code here
}
else
{
// TODO: add loading code here
MyClass cl;
cl.Load( ar.GetFile()->GetFilePath() );
}

Quote:

}

In MyClass:

bool MyClass::Load( CString* fn )
{
CFileException e;
CFile fn;
if (!fn.open( fn, CFile::modeRead, &e ))
{
#ifdef _DEBUG
afxDump << "File could not be opened " << e.m_cause << "\n";
#endif
return false;
}
.
.

Quote:

}

The program can be compiled but it cannot load the file all the time.
The e.m_cause returns 11 and i wonder what's wrong with my program
and how can i solve it?
Thanks
Kelvin Leung

Sun, 26 Aug 2001 03:00:00 GMT

Dan Eas
#2 / 4

A problem on loading file using CFile

You've got fn declared twice, as the parameter CString, and
as a CFile.

Dan

Quote:

>I little problem in my program:
>In the Document class:
>void CMainDoc::Serialize(CArchive& ar)
>{
> if (ar.IsStoring())
> {
> // TODO: add storing code here
> }
> else
> {
> // TODO: add loading code here
> MyClass cl;
> cl.Load( ar.GetFile()->GetFilePath() );
> }
>}

>In MyClass:

>bool MyClass::Load( CString* fn )
>{
> CFileException e;
> CFile fn;
> if (!fn.open( fn, CFile::modeRead, &e ))
> {
>#ifdef _DEBUG
> afxDump << "File could not be opened " << e.m_cause << "\n";
>#endif
> return false;
> }
> .
> .
>}

>The program can be compiled but it cannot load the file all the time.
>The e.m_cause returns 11 and i wonder what's wrong with my program
>and how can i solve it?
>Thanks
>Kelvin Leung

Sun, 26 Aug 2001 03:00:00 GMT

Guido Ramseie
#3 / 4

A problem on loading file using CFile

As far as I could find out the error 11 is a "sharing" violation.

Have a look at the rest of the CFileExcetion values e there is also a
clear text message you can look at.

Guido

Kelvin Leung schrieb:

Quote:

> I little problem in my program:
> In the Document class:
> void CMainDoc::Serialize(CArchive& ar)
> {
> if (ar.IsStoring())
> {
> // TODO: add storing code here
> }
> else
> {
> // TODO: add loading code here
> MyClass cl;
> cl.Load( ar.GetFile()->GetFilePath() );
> }
> }

> In MyClass:

> bool MyClass::Load( CString* fn )
> {
> CFileException e;
> CFile fn;
> if (!fn.open( fn, CFile::modeRead, &e ))
> {
> #ifdef _DEBUG
> afxDump << "File could not be opened " << e.m_cause << "\n";
> #endif
> return false;
> }
> .
> .
> }

> The program can be compiled but it cannot load the file all the time.
> The e.m_cause returns 11 and i wonder what's wrong with my program
> and how can i solve it?
> Thanks
> Kelvin Leung

Sun, 26 Aug 2001 03:00:00 GMT

Kelvin Leun
#4 / 4

A problem on loading file using CFile

The CFile fn and the CString fn is just a typing mistake. In my original
program their names are different.

Quote:

> I little problem in my program:
> In the Document class:
> void CMainDoc::Serialize(CArchive& ar)
> {
> if (ar.IsStoring())
> {
> // TODO: add storing code here
> }
> else
> {
> // TODO: add loading code here
> MyClass cl;
> cl.Load( ar.GetFile()->GetFilePath() );
> }
> }

> In MyClass:

> bool MyClass::Load( CString* fn )
> {
> CFileException e;
> CFile fn;
> if (!fn.open( fn, CFile::modeRead, &e ))
> {
> #ifdef _DEBUG
> afxDump << "File could not be opened " << e.m_cause << "\n";
> #endif
> return false;
> }
> .
> .
> }

> The program can be compiled but it cannot load the file all the time.
> The e.m_cause returns 11 and i wonder what's wrong with my program
> and how can i solve it?
> Thanks
> Kelvin Leung

Mon, 27 Aug 2001 03:00:00 GMT