Reading a string line per line in C#

Question

Hi,

I'm trying to read out and interpret a string line per line. I took a look at the StringReader class, but I need to find out when I'm on the last line. Here's some pseudocode of what I'm trying to accomplish:

while (!stringReaderObject.atEndOfStream()) {
    interpret(stringReaderObject.readLine());
}

Does somebody know how to do this?

Thanks!

Yvan

Answer 1

The StreamReader class has an EndOfStream property. Have you looked into using that?

Answer 2

I am not sure where you are reading from. If it is from the Console, you can check for the end of inputs string like "quit" to denote end of input

String input;
while((input = reader.readLine()) != "quit"){
   // do something
}

Answer 3

Like this:

string line;
while (null != (line = reader.ReadLine()) {
    Process(line);
}

Answer 4

Check for null when you do a readLine - see the docs.

Answer 5

If you are reading it in from a file, it is easier to do just do:

foreach(var myString in File.ReadAllLines(pathToFile))
    interpret(myString);

If you are getting the string from somewhere else (a web service class or the like) it is simpler to just split the string:

foreach(var myString in entireString.Split(Environment.NewLine))
    interpret(myString);

Answer 6

Dismissile is correct:

http://msdn.microsoft.com/en-us/library/system.io.streamreader.endofstream.aspx

while (!reader.EndOfStream) 
{ 
    string line = reader.ReadLine(); 
}