C# – Reading Lines From a File Until the End of File is Reached
Given a file, now our task is to read lines from the file until the end of the file using C#. Before reading the lines from a file we must have some data, so first we need an empty file in our path and then insert lines in our file and then we read lines from a file. So to do this task we use two basic operations that are reading and writing. The file becomes a stream when we open the file for writing and reading, here the stream means a sequence of bytes that is used for communication. So to our task, we use:
Path: For reading a file from any source we have to need the location/path. A Path is a string that includes a file path in a system.
We will check if the file exists in the path or not by using File.Exists(path) method
StreamWriter: StreamWriter is used to write a stream of data/lines to a file.
StreamWriter sw = new StreamWriter(myfilepath)
StreamReader: StreamReader is used to read a stream of data/lines from a file.
StreamReader sr = new StreamReader(myfilepath)
Peek: Used to read the data/lines from the file till the end of the file.
So all are placed in try() block to catch the exceptions that occur.
Example: Consider the path and file are:
hello geeks for geeks welcome to c#
See the file data is inserted: