C# TextWriter

Syntax

public abstract class TextWriter : MarshalByRefObject, IDisposable

Example

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string[] names = { "John", "Jane", "Jack", "Jill" };
        using (TextWriter writer = File.CreateText("output.txt"))
        {
            foreach (string name in names)
            {
                writer.WriteLine("Hello, " + name);
            }
        }
    }
}

Output

The code writes "Hello, John", "Hello, Jane", "Hello, Jack", and "Hello, Jill" to a file named "output.txt".

Explanation

The TextWriter class provides an abstract base class for writing characters to streams. It allows you to write strings or individual characters to an output stream.

In the example above, we use File.CreateText to create a TextWriter instance for writing to a text file. We then use a foreach loop to write a personalized message to the output stream for each name in the names array. The using statement ensures that the TextWriter is properly disposed of when we're done using it.

Use

The TextWriter class provides a way to write characters to an output stream. It's useful when you need to write text data to a file, network socket, or other output stream.

Some common use cases for TextWriter are:

• Writing text data to a file or network socket
• Creating custom output for a console application
• Building custom reporting tools, data export, or other data processing applications

Important Points

• TextWriter is an abstract base class that provides methods for writing characters to output streams.
• The using statement should be used to ensure that the TextWriter is properly disposed of.
• Common use cases for TextWriter include writing text data to a file or network socket, building custom output or reporting tools, and data processing applications.

Summary

TextWriter provides a way to write characters to an output stream. It's useful when you need to write text data to a file or network socket, create custom output for a console application, or build custom reporting tools. Remember to use the using statement to ensure proper disposal of the TextWriter instance.