StreamWriter Constructor (Stream, Encoding)

Initializes a new instance of the StreamWriter class for the specified stream by using the specified encoding and the default buffer size.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)

public StreamWriter(
	Stream stream,
	Encoding encoding
)

Parameters

stream
Type: System.IO.Stream

The stream to write to.

encoding
Type: System.Text.Encoding

The character encoding to use.

ExceptionCondition
ArgumentNullException

stream or encoding is null.

ArgumentException

stream is not writable.

This constructor initializes the Encoding property using the encoding parameter, and the BaseStream property using the stream parameter. The position of the stream is not reset. For additional information, see Encoding.

The StreamWriter object calls Dispose() on the provided Stream object when StreamWriter.Dispose is called.

Caution noteCaution

When you compile a set of characters with a particular cultural setting and retrieve those same characters with a different cultural setting, the characters might not be interpretable, and could cause an exception to be thrown.

For a list of common I/O tasks, see Common I/O Tasks.

The following example demonstrates this constructor.

using System;
using System.IO;
using System.Text;

namespace ConsoleApplication
{
    class Program
    {
        static void Main(string[] args)
        {
            string fileName = "test.txt";
            string textToAdd = "Example text in file";
            FileStream fs = null;
            try
            {
               fs = new FileStream(fileName, FileMode.CreateNew);
               using (StreamWriter writer = new StreamWriter(fs, Encoding.Default))
                {
                    writer.Write(textToAdd);
                }
            }       
            finally
            {
                if (fs != null)
                    fs.Dispose();
            }
        }
    }
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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