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Quote:

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Originally Posted by Elrond

... Note that WriteString does not add the end of line characters, so you would nee to do it yourself when you need it:

Code:

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CString str = _T("String to write\r\n");
file.WriteString(str);

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This code is not 100% correct.
you should NOT add CR ('\r') character yourself, only LF ('\n'). CStdioFile::WriteString will then replace

Quote:

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... any newline character ... written to the file as a carriage return–linefeed pair.

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So, the correct code is:

Code:

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CString str = _T("String to write\n");
file.WriteString(str);

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Hi,

Do i still need mode create if i am just saving all the data into a file i already created.Also which is the line that opens up the directory so that u can save it to your file?Do i have to include seektoend() below
file.Open(filename, CFile::modeCreate | CFile::modeNoTruncate | CFile::modeWrite);


Thanks
nancy

Quote:

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Originally Posted by nancy87

... Also which is the line that opens up the directory so that u can save it to your file?

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You don't need to "open a directory".
Just use CFileDialog::GetPathName to obtain the full path name of a file and then pass this full path name to CStdIo::Open

Quote:

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Originally Posted by nancy87

... Do i have to include seektoend() below
file.Open(filename, CFile::modeCreate | CFile::modeNoTruncate | CFile::modeWrite);

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Yes, if you want to append new data to the old file.

hi guys
may i know which part i went wrong my code is here

void CabcdeDlg::OnBnClickedButton1()
{
CString strTextTime;
m_Time.GetWindowText(strTextTime);

CStdioFile File;

file.Open(lpszfilename, CFile::modeCreate | CFile::modeNoTruncate | CFile::modeWrite);
file.SeekToEnd();

file.Write(" hello world");

CString str = _T("String to write\n");
file.WriteString(str);

file.Close();

}

Do not forget to close file when writting string into a file.

Quote:

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Originally Posted by kacaka

hi guys
may i know which part i went wrong my code is here
...

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What is the problem?

Besides:

1. The variable filename is not defined.
2. You have to use CFileException to know whether your file operations succeded or not. See the code examples in MSDN articles CFile::Open and CStdioFile::CStdioFile

Hi,victorN
Understand that you do not want to spoonfeed me with giving me the code,but after trying quite long i still cant compile and my code shows lots of arrow care to rpovide more help??sorry i started this nt long ago.

Quote:

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Originally Posted by kacaka

... after trying quite long i still cant compile and my code shows lots of arrow care to rpovide more help??

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But you haven't shown your actual code yet! Nor showed you the exact compile errors!

So how could we help you more? :cool:

hi,
my code as above, may i ask why there are error c2228 like left of 'seekToEnd' must have class /struct union. the same error appears for 'write' n 'close','writestring',error c2065 lpszfileName undeclared identifier'writestring'.

The variable filename is not defined. ?? may i know hw to define tis.

for point 2
You have to use CFileException to know whether your file operations succeded or not. See the code examples in MSDN articles CFile::Open and CStdioFile::CStdioFile

CFileException Exception;
CFile File;

if(File.Open("c:\\data.txt", CFile::modeRead, &Exception) == FALSE)
{



may i know whether the code is correct .

Quote:

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Originally Posted by kacaka

hi,
my code as above, may i ask why there are error c2228 like left of 'seekToEnd' must have class /struct union. the same error appears for 'write' n 'close','writestring',error c2065 lpszfileName undeclared identifier'writestring'.

The variable filename is not defined. ?? may i know hw to define tis.

for point 2
You have to use CFileException to know whether your file operations succeded or not. See the code examples in MSDN articles CFile::Open and CStdioFile::CStdioFile

CFileException Exception;
CFile File;

if(File.Open("c:\\data.txt", CFile::modeRead, &Exception) == FALSE)
{



may i know whether the code is correct .

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You didn't show any of the code that generated those errors. Keep in mind though that C++ is case sensitive.

hi ,
i have solved the errors now and it works.any question i will post on a new thread thank you everyone