Working with text file

 Working with text file

1. namespace

The namespace System::IO is used to work with file reading and writing

 2. Save text string into a file

1). Create a StreamWriter

StreamWriter^ outfile = gcnew StreamWriter(“TextFilePathAndName.txt”);
2).  Write text to “TextFilePathAndName.txt”

outfile->Write(“Text to write”);

For other write method please refer to StreamWriter

3).  Close the StreamWriter

outfile->Close();

 For save binary data into a file, please refer to here.

3. Read text from a file

1). Check the file exists

File::Exists(“TextFilePathAndName.txt”);

2). If the file exists, open the file

StreamReader^  sr = gcnew StreamReader((“TextFilePathAndName.txt”);

3). Read text from the file

a). Read a line

String^ line =  sr->ReadLine();

b). For other read method please refer to StreamReader methods

4).  Close the file

 sr->Close();

 For read a birnary data from file, please refer to here.