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BinaryReader Constructor (Stream)

Initializes a new instance of the BinaryReader class based on the supplied stream and using UTF8Encoding.

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

'Declaration
Public Sub New ( _
	input As Stream _
)
'Usage
Dim input As Stream 

Dim instance As New BinaryReader(input)

Parameters

input
Type: System.IO.Stream

A stream.

ExceptionCondition
ArgumentException

The stream does not support reading, the stream is Nothing, or the stream is already closed.

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

This code example is part of a larger example provided for the BinaryReader class.

Dim binReader As New BinaryReader( _
    File.Open(fileName, FileMode.Open))
Try 

    ' If the file is not empty, 
    ' read the application settings. 
    ' First read 4 bytes into a buffer to  
    ' determine if the file is empty. 
    Dim testArray As Byte() = {0,0,0,0}
    Dim count As Integer = binReader.Read(testArray, 0, 3)

    If count <> 0 Then 

        ' Reset the position in the stream to zero.
        binReader.BaseStream.Seek(0, SeekOrigin.Begin)

        aspRatio   = binReader.ReadSingle()
        lkupDir     = binReader.ReadString()
        saveTime  = binReader.ReadInt32()
        statusBar = binReader.ReadBoolean()
        Return 
    End If 

' If the end of the stream is reached before reading 
' the four data values, ignore the error and use the 
' default settings for the remaining values. 
Catch ex As EndOfStreamException
    Console.WriteLine("{0} caught and ignored. " & _ 
        "Using default values.", ex.GetType().Name)
Finally
    binReader.Close()
End Try

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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