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BinaryWriter.Write Method (Char[])

Writes a character array to the current stream and advances the current position of the stream in accordance with the Encoding used and the specific characters being written to the stream.

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

public virtual void Write (
	char[] chars
)
public void Write (
	char[] chars
)
public function Write (
	chars : char[]
)
Not applicable.

Parameters

chars

A character array containing the data to write.

Exception typeCondition

ArgumentNullException

chars is a null reference (Nothing in Visual Basic).

ObjectDisposedException

The stream is closed.

IOException

An I/O error occurs.

The following table lists examples of other typical or related I/O tasks.

To do this...

See the example in this topic...

Create a text file.

Writing Text to a File

Write to a text file.

Writing Text to a File

Read from a text file.

Reading Text from a File

Append text to a file.

Opening and Appending to a Log File

File.AppendText

FileInfo.AppendText

Get the size of a file.

FileInfo.Length

Get the attributes of a file.

File.GetAttributes

Set the attributes of a file.

File.SetAttributes

Determine if a file exists.

File.Exists

Read from a binary file.

Reading and Writing to a Newly Created Data File

Write to a binary file.

Reading and Writing to a Newly Created Data File

The following code example shows how to read and write data using memory as a backing store.

using System;
using System.IO;

class BinaryRW
{
    static void Main()
    {
        char[] invalidPathChars = Path.InvalidPathChars;
        MemoryStream memStream = new MemoryStream();
        BinaryWriter binWriter = new BinaryWriter(memStream);

        // Write to memory.
        binWriter.Write("Invalid file path characters are: ");
        binWriter.Write(Path.InvalidPathChars);

        // Create the reader using the same MemoryStream 
        // as used with the writer.
        BinaryReader binReader = new BinaryReader(memStream);

        // Set Position to the beginning of the stream.
        memStream.Position = 0;

        // Read the data from memory and write it to the console.
        Console.Write(binReader.ReadString());
        Console.WriteLine(binReader.ReadChars(
            (int)(memStream.Length - memStream.Position)));
    }
}

import System.*;
import System.IO.*;

class BinaryRW
{   
    public static void main(String[] args)
    {
        char invalidPathChars[] = Path.InvalidPathChars;
        MemoryStream memStream = new MemoryStream();
        BinaryWriter binWriter = new BinaryWriter(memStream);

        // Write to memory.
        binWriter.Write("Invalid file path characters are: ");
        binWriter.Write(Path.InvalidPathChars);

        // Create the reader using the same MemoryStream 
        // as used with the writer.
        BinaryReader binReader = new BinaryReader(memStream);

        // Set Position to the beginning of the stream.
        memStream.set_Position(0);

        // Read the data from memory and write it to the console.
        Console.Write(binReader.ReadString());
        Console.WriteLine(binReader.ReadChars((int)
            (memStream.get_Length() - memStream.get_Position())));
    } //main
} //BinaryRW

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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