StreamWriter.Write Method (Char(), Int32, Int32)

 
System_CAPS_noteNote

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Writes a subarray of characters to the stream.

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

Public Overrides Sub Write (
	buffer As Char(),
	index As Integer,
	count As Integer
)

Parameters

buffer
Type: System.Char()

A character array that contains the data to write.

index
Type: System.Int32

The character position in the buffer at which to start reading data.

count
Type: System.Int32

The maximum number of characters to write.

Exception Condition
ArgumentNullException

buffer is null.

ArgumentException

The buffer length minus index is less than count.

ArgumentOutOfRangeException

index or count is negative.

IOException

An I/O error occurs.

ObjectDisposedException

AutoFlush is true or the StreamWriter buffer is full, and current writer is closed.

NotSupportedException

AutoFlush is true or the StreamWriter buffer is full, and the contents of the buffer cannot be written to the underlying fixed size stream because the StreamWriter is at the end the stream.

This method overrides TextWriter.Write.

The characters are read from buffer beginning at index and continuing through index + (count - 1). All characters are written to the underlying stream unless the end of the underlying stream is reached prematurely. Flush is invoked automatically if AutoFlush is true.

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

This example writes eight characters from a 13-element array to a file, beginning at the third element of the array.

Imports System
Imports System.IO

Public Class SWBuff

    Public Shared Sub Main()
        Dim sb As New FileStream("MyFile.txt", FileMode.OpenOrCreate)
        Dim b As Char() = {"a"c, "b"c, "c"c, "d"c, "e"c, "f"c, "g"c, _
           "h"c, "i"c, "j"c, "k"c, "l"c, "m"c}
        Dim sw As New StreamWriter(sb)
        sw.Write(b, 3, 8)
        sw.Close()
    End Sub
End Class

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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