c# how do I count lines in a textfile

Question

any problems with doing this?

int  i = new StreamReader(\"file.txt\").ReadToEnd().Split(new char[] {\'\\n\'}).Length

Answer 1

Well, the problem with doing this is that you allocate a lot of memory when doing this on large files.

I would rather read the file line by line and manually increment a counter. This may not be a one-liner but it's much more memory-efficient.

Alternatively, you may load the data in even-sized chunks and count the line breaks in these. This is probably the fastest way.