StreamReader Constructor

Initializes a new instance of the StreamReader class for the specified stream.

Overload List

Initializes a new instance of the StreamReader class for the specified stream.

Supported by the .NET Compact Framework.

[Visual Basic] Public Sub New(Stream)

[C#] public StreamReader(Stream);

[C++] public: StreamReader(Stream*);

[JScript] public function StreamReader(Stream);

Initializes a new instance of the StreamReader class for the specified file name.

Supported by the .NET Compact Framework.

[Visual Basic] Public Sub New(String)

[C#] public StreamReader(string);

[C++] public: StreamReader(String*);

[JScript] public function StreamReader(String);

Initializes a new instance of the StreamReader class the specified stream, with the specified byte order mark detection option.

Supported by the .NET Compact Framework.

[Visual Basic] Public Sub New(Stream, Boolean)

[C#] public StreamReader(Stream, bool);

[C++] public: StreamReader(Stream*, bool);

[JScript] public function StreamReader(Stream, Boolean);

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

Supported by the .NET Compact Framework.

[Visual Basic] Public Sub New(Stream, Encoding)

[C#] public StreamReader(Stream, Encoding);

[C++] public: StreamReader(Stream*, Encoding*);

[JScript] public function StreamReader(Stream, Encoding);

Initializes a new instance of the StreamReader class for the specified file name, with the specified byte order mark detection option.

Supported by the .NET Compact Framework.

[Visual Basic] Public Sub New(String, Boolean)

[C#] public StreamReader(string, bool);

[C++] public: StreamReader(String*, bool);

[JScript] public function StreamReader(String, Boolean);

Initializes a new instance of the StreamReader class for the specified file name and with the specified character encoding.

Supported by the .NET Compact Framework.

[Visual Basic] Public Sub New(String, Encoding)

[C#] public StreamReader(string, Encoding);

[C++] public: StreamReader(String*, Encoding*);

[JScript] public function StreamReader(String, Encoding);

Initializes a new instance of the StreamReader class for the specified stream, with the specified character encoding and byte order mark detection option.

Supported by the .NET Compact Framework.

[Visual Basic] Public Sub New(Stream, Encoding, Boolean)

[C#] public StreamReader(Stream, Encoding, bool);

[C++] public: StreamReader(Stream*, Encoding*, bool);

[JScript] public function StreamReader(Stream, Encoding, Boolean);

Initializes a new instance of the StreamReader class for the specified file name, with the specified character encoding and byte order mark detection option.

Supported by the .NET Compact Framework.

[Visual Basic] Public Sub New(String, Encoding, Boolean)

[C#] public StreamReader(string, Encoding, bool);

[C++] public: StreamReader(String*, Encoding*, bool);

[JScript] public function StreamReader(String, Encoding, Boolean);

Initializes a new instance of the StreamReader class for the specified stream, with the specified character encoding, byte order mark detection option, and buffer size.

Supported by the .NET Compact Framework.

[Visual Basic] Public Sub New(Stream, Encoding, Boolean, Integer)

[C#] public StreamReader(Stream, Encoding, bool, int);

[C++] public: StreamReader(Stream*, Encoding*, bool, int);

[JScript] public function StreamReader(Stream, Encoding, Boolean, int);

Initializes a new instance of the StreamReader class for the specified file name, with the specified character encoding, byte order mark detection option, and buffer size.

Supported by the .NET Compact Framework.

[Visual Basic] Public Sub New(String, Encoding, Boolean, Integer)

[C#] public StreamReader(string, Encoding, bool, int);

[C++] public: StreamReader(String*, Encoding*, bool, int);

[JScript] public function StreamReader(String, Encoding, Boolean, int);

Example

[Visual Basic, C#, C++] The following example demonstrates this StreamReader constructor.

[Visual Basic, C#, C++] Note   This example shows how to use one of the overloaded versions of the StreamReader constructor. For other examples that might be available, see the individual overload topics.

[Visual Basic] 
Private Sub getNewStreamReader()
    Dim S As Stream = File.OpenRead("C:\Temp\Test.txt")
    'Get a new StreamReader in ASCII format from a
    'file using a buffer and byte order mark detection
    Dim SrAsciiFromFileFalse512 As StreamReader = New StreamReader("C:\Temp\Test.txt", _
        System.Text.Encoding.ASCII, False, 512)
    'Get a new StreamReader in ASCII format from a
    'file with byte order mark detection = false
    Dim SrAsciiFromFileFalse As StreamReader = New StreamReader("C:\Temp\Test.txt", _
        System.Text.Encoding.ASCII, False)
    'Get a new StreamReader in ASCII format from a file 
    Dim SrAsciiFromFile As StreamReader = New StreamReader("C:\Temp\Test.txt", _
        System.Text.Encoding.ASCII)
    'Get a new StreamReader from a
    'file with byte order mark detection = false        
    Dim SrFromFileFalse As StreamReader = New StreamReader("C:\Temp\Test.txt", False)
    'Get a new StreamReader from a file
    Dim SrFromFile As StreamReader = New StreamReader("C:\Temp\Test.txt")
    'Get a new StreamReader in ASCII format from a
    'FileStream with byte order mark detection = false and a buffer
    Dim SrAsciiFromStreamFalse512 As StreamReader = New StreamReader(S, _
        System.Text.Encoding.ASCII, False, 512)
    'Get a new StreamReader in ASCII format from a
    'FileStream with byte order mark detection = false
    Dim SrAsciiFromStreamFalse = New StreamReader(S, _
        System.Text.Encoding.ASCII, False)
    'Get a new StreamReader in ASCII format from a FileStream
    Dim SrAsciiFromStream As StreamReader = New StreamReader(S, _
        System.Text.Encoding.ASCII)
    'Get a new StreamReader from a
    'FileStream with byte order mark detection = false
    Dim SrFromStreamFalse As StreamReader = New StreamReader(S, False)
    'Get a new StreamReader from a FileStream
    Dim SrFromStream As StreamReader = New StreamReader(S)

End Sub

[C#] 
private void getNewStreamReader() 
{
    //Get a new StreamReader in ASCII format from a
    //file using a buffer and byte order mark detection
    StreamReader srAsciiFromFileFalse512 = 
        new StreamReader("C:\\Temp\\Test.txt",
        System.Text.Encoding.ASCII, false, 512);
    //Get a new StreamReader in ASCII format from a
    //file with byte order mark detection = false
    StreamReader srAsciiFromFileFalse = 
        new StreamReader("C:\\Temp\\Test.txt",
        System.Text.Encoding.ASCII, false);
    //Get a new StreamReader in ASCII format from a file 
    StreamReader srAsciiFromFile = 
        new StreamReader("C:\\Temp\\Test.txt",
        System.Text.Encoding.ASCII);
    //Get a new StreamReader from a
    //file with byte order mark detection = false
    StreamReader srFromFileFalse = 
        new StreamReader("C:\\Temp\\Test.txt", false);
    //Get a new StreamReader from a file
    StreamReader srFromFile = 
        new StreamReader("C:\\Temp\\Test.txt");
    //Get a new StreamReader in ASCII format from a
    //FileStream with byte order mark detection = false and a buffer
    StreamReader srAsciiFromStreamFalse512 = new StreamReader(
        (System.IO.Stream)File.OpenRead("C:\\Temp\\Test.txt"),
        System.Text.Encoding.ASCII, false, 512);
    //Get a new StreamReader in ASCII format from a
    //FileStream with byte order mark detection = false
    StreamReader srAsciiFromStreamFalse = new StreamReader(
        (System.IO.Stream)File.OpenRead("C:\\Temp\\Test.txt"),
        System.Text.Encoding.ASCII, false);
    //Get a new StreamReader in ASCII format from a FileStream
    StreamReader srAsciiFromStream = new StreamReader(
        (System.IO.Stream)File.OpenRead("C:\\Temp\\Test.txt"),
        System.Text.Encoding.ASCII);
    //Get a new StreamReader from a
    //FileStream with byte order mark detection = false
    StreamReader srFromStreamFalse = new StreamReader(
        (System.IO.Stream)File.OpenRead("C:\\Temp\\Test.txt"), 
        false);
    //Get a new StreamReader from a FileStream
    StreamReader srFromStream = new StreamReader(
        (System.IO.Stream)File.OpenRead("C:\\Temp\\Test.txt"));
}

[C++] 
private:
    void getNewStreamReader() {
        //Get a new StreamReader in ASCII format from a
        //file using a buffer and byte order mark detection
        StreamReader * srAsciiFromFileFalse512 = 
            new StreamReader("C:\\Temp\\Test.txt",
            System::Text::Encoding::ASCII, false, 512);
        //Get a new StreamReader in ASCII format from a
        //file with byte order mark detection = false
        StreamReader * srAsciiFromFileFalse = 
            new StreamReader("C:\\Temp\\Test.txt",
            System::Text::Encoding::ASCII, false);
        //Get a new StreamReader in ASCII format from a file 
        StreamReader * srAsciiFromFile = 
            new StreamReader("C:\\Temp\\Test.txt",
            System::Text::Encoding::ASCII);
        //Get a new StreamReader from a
        //file with byte order mark detection = false
        StreamReader * srFromFileFalse = 
            new StreamReader("C:\\Temp\\Test.txt", false);
        //Get a new StreamReader from a file
        StreamReader * srFromFile = 
            new StreamReader("C:\\Temp\\Test.txt");
        //Get a new StreamReader in ASCII format from a
        //FileStream with byte order mark detection = false and a buffer
        StreamReader * srAsciiFromStreamFalse512 = new StreamReader(
            File::OpenRead("C:\\Temp\\Test.txt"),
            System::Text::Encoding::ASCII, false, 512);
        //Get a new StreamReader in ASCII format from a
        //FileStream with byte order mark detection = false
        StreamReader *srAsciiFromStreamFalse = new StreamReader(
            File::OpenRead("C:\\Temp\\Test.txt"),
            System::Text::Encoding::ASCII, false);
        //Get a new StreamReader in ASCII format from a FileStream
        StreamReader *srAsciiFromStream = new StreamReader(
            File::OpenRead("C:\\Temp\\Test.txt"),
            System::Text::Encoding::ASCII);
        //Get a new StreamReader from a
        //FileStream with byte order mark detection = false
        StreamReader *srFromStreamFalse = new StreamReader(
            File::OpenRead("C:\\Temp\\Test.txt"), 
            false);
        //Get a new StreamReader from a FileStream
        StreamReader *srFromStream = new StreamReader(
            File::OpenRead("C:\\Temp\\Test.txt"));
    }

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button in the upper-left corner of the page.

See Also

StreamReader Class | StreamReader Members | System.IO Namespace