Windows Dev Center

StreamReader Constructor (Stream, Encoding)

Initializes a new instance of the StreamReader class for the specified stream, using the specified character encoding.

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

public StreamReader(
	Stream stream,
	Encoding encoding


Type: System.IO.Stream
The stream to be read.
Type: System.Text.Encoding
The character encoding to use.


stream does not support reading.


stream or encoding is null.

The character encoding is set by the encoding parameter, and the default buffer size is used. The StreamReader object attempts to detect the encoding by looking at the first three bytes of the stream. It automatically recognizes UTF-8, little-endian Unicode, and big-endian Unicode text if the file starts with the appropriate byte order marks. Otherwise, the user-provided encoding is used. See the Encoding.GetPreamble method for more information.

The StreamReader object calls Stream.Dispose() on the provided Stream object when StreamReader.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.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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