asked on

How to reading and writting string values from Formatted CFile ?

Hello I have to read or write string file in txt file like

Product name : Bla bla bla

Product ID : 12345

Product available : yes

Product purchase date: 12/3/09

if i like to change something like this

Product name : AA AA AA

How can i do it with CFile?

Thanks for the Help

alb66

Since you need a text file you can use CStdioFile instead of CFile.

      try
      {
            CString str;

            CStdioFile oFile( "test.txt", CFile::modeCreate|CFile::modeWrite );

            str.Format( "Product name : %s\n", "Bla Bla Bla" );
            oFile.WriteString( str );

            str.Format( "Product ID : %d\n", 12345 );
            oFile.WriteString( str );

            ...
      }
      catch( CFileException )
      {
      }

alb66

For reading:

      CStdioFile oFile;
      if ( oFile.Open( strFileIndex, CFile::modeRead|CFile::shareDenyWrite ))
      {
            CString str;
            if ( oFileIndex.ReadString( str ))
            {
                  ...

SumitKalsait

ASKER

but how to write at perticular position how to find the string that you want to edit, actually
str.Format( "Product ID : %d\n", 12345 );
oFile.WriteString( str );

replace whole content of the file with this written string thanks

ASKER CERTIFIED SOLUTION

alb66

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