StreamReader

ollieburns

Is there any way to go back to the top of a file when reading in from a file...or is the only to close the current object create a new one and open the file again?

3 Replies

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George Eakin18y ago

Found this thread looking for the same thing. The answer is YES, you can. The StreamReader object is foward only but the underlying stream is not. Example:

FileStream fs = new FileStream("myfile", FileMode.Open);
StreamReader sr = new StreamReader(fs);

while (!sr.EndOfStream)
   string line = sr.ReadLine();

// Now at end of stream. Go back.
fs.Seek(0, SeekOrigin.Begin);

while(!sr.EndOfStream)
   string line sr.ReadLine();

// Have read the file twice.
sr.Close();
fs.Close();

Thanks everyone for the help.

c_wiley22y ago
I think this should work. oFileStream.Seek(0, System.IO.SeekOriginal.Begin) Craig
+1
james22y ago
StreamReader is forward-only, so unfortunately, you have to close and reopen. -James
+1