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BinaryWriter.Write Method (Char[])

.NET Framework 3.0

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)

Syntax

C++

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public virtual void Write (
	char[] chars
)

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public void Write (
	char[] chars
)

JScript

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public function Write (
	chars : char[]
)

XAML

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Not applicable.

Parameters

chars: A character array containing the data to write.

Exceptions

Exception type	Condition
ArgumentNullException	chars is a null reference (Nothing in Visual Basic).
ObjectDisposedException	The stream is closed.
IOException	An I/O error occurs.

Remarks

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

Example

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

C++

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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)));
    }
}

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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

Platforms

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.

Version Information