StreamReader Constructor (String, Encoding, Boolean)
Assembly: mscorlib (in mscorlib.dll)
public StreamReader( string path, Encoding encoding, bool detectEncodingFromByteOrderMarks )
path is an empty string ("").
path or encoding is null.
The file cannot be found.
The specified path is invalid; for example, it might refer to an unmapped drive.
path includes an incorrect or invalid syntax for file name, directory name, or volume label.
This constructor initializes the encoding as specified by the encoding parameter, and the internal buffer to the default size.
The detectEncodingFromByteOrderMarks parameter detects 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 path parameter can be a file name, including a file on a Universal Naming Convention (UNC) share.
The path parameter is not required to be a file stored on disk; it can be any part of a system that supports access using streams.
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.
Silverlight for Windows PhoneThis member has a SecurityCriticalAttribute attribute on Silverlight for Windows Phone, because the attribute was present in Silverlight 3. This attribute restricts this member to internal use. Application code that uses this member throws a MethodAccessException.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.