C# StreamReader ReadToEnd Example (Read Entire File)

Use the ReadToEnd method on the StreamReader to read an entire text file into a string.

StreamReader, ReadToEnd. Sometimes we want to read in a file line-by-line, but other times we just want the entire file at once. The ReadToEnd method on StreamReader is helpful here.StreamReader

With this method, we consume the entire file into a string in one line. This is similar in operation to File.ReadAllText. But StreamReader requires some surrounding code.File.ReadAllText

An example. Here is the ReadToEnd method. We can call it inside a using-statement for best effect. Please change the file path before you run this program on your system.

C# program that uses StreamReader ReadToEnd using System; using System.IO; class Program { static void Main() { using (StreamReader reader = new StreamReader(@"C:\programs\file.txt")) { // Read entire text file with ReadToEnd. string contents = reader.ReadToEnd(); Console.WriteLine(contents); } } } Output Thank you Friend

A review. Which methods are best? If you already have a StreamReader, then using ReadToEnd is probably the best solution to read an entire text file into a string.

However: In other programs, where no StreamReader object exists, File.ReadAllText is probably a clearer method to use.

ReadToEndAsync. With ReadToEndAsync on StreamReader, we can achieve a significant performance boost. But this only helps when a lot of CPU usage is present during processing.StreamReader ReadToEndAsync

A summary. ReadToEnd is important enough that it deserves special attention. I have used it recently in a program—sometimes it leads to clearer code than ReadLine and while-loops would.

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C# StreamReader ReadToEnd Example (Read Entire File)

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