StreamWriter::Write Method (array<Char>^, Int32, Int32)

.NET Framework (current version)

Writes a subarray of characters to the stream.

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

Syntax

public:
virtual void Write(
	array<wchar_t>^ buffer,
	int index,
	int count
) override

Parameters

buffer: Type: array<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.

Exceptions

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.

Remarks

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.

Examples

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

C++

using namespace System;
using namespace System::IO;

int main()
{
   FileStream^ sb = gcnew FileStream( "MyFile.txt",FileMode::OpenOrCreate );
   array<Char>^b = {'a','b','c','d','e','f','g','h','i','j','k','l','m'};
   StreamWriter^ sw = gcnew StreamWriter( sb );
   sw->Write( b, 3, 8 );
   sw->Close();
}

Version Information

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