Is it possible to read unknown number of lines from console in C#?

Question

There is a function, which can read a single line from the console input (Console.ReadLine()), but I wish to read or some arbitrary number of lines, which is unknown at compile time.

Answer 1

Of course it is. Just use just read a single line (using ReadLine() or whatever else you please) at a time within either a for loop (if you know at the beginning of reading how many lines you need) or within a while loop (if you want to stop reading when you reach EOF or a certain input).

EDIT:

Sure:

while ((line = Console.ReadLine()) != null) {
    // Do whatever you want here with line
}

Answer 2

Some of the other answers here loop until a null line is encountered while others expect the user to type something special like "EXIT". Keep in mind that reading from the console could be either a person typing or a redirected input file:

myprog.exe < somefile.txt

In the case of redirected input Console.ReadLine() would return null when it hits the end of the file. In the case of a user running the program interactively they'd have to know to how to enter the end of file character (Ctrl+Z followed by enter or F6 followed by enter). If it is an interactive user you might need to let them know how to signal the end of input.