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StringWriter.Write Method (Char[], Int32, Int32)

Writes the specified region of a character array to this instance of the StringWriter.

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

public override void Write(
	char[] buffer,
	int index,
	int count


Type: System.Char[]
The character array to read data from.
Type: System.Int32
The index at which to begin reading from buffer.
Type: System.Int32
The maximum number of characters to write.


buffer is null.


index or count is negative.


(index + count)> buffer. Length.


The writer is closed.

This method overrides TextWriter.Write.

This method writes count characters of data to this StringWriter from buffer, starting at position index.

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.

How to: Write Text to a File

Write to a text file.

How to: Write Text to a File

Read from a text file.

How to: Read Text from a File

Append text to a file.

How to: Open and Append to a Log File



Get the size of a file.


Get the attributes of a file.


Set the attributes of a file.


Determine if a file exists.


Read from a binary file.

How to: Read and Write to a Newly Created Data File

Write to a binary file.

How to: Read and Write to a Newly Created Data File

This code example is part of a larger example provided for the StringWriter() constructor.

// Use the three overloads of the Write method that are 
// overridden by the StringWriter class.
strWriter.Write("file path characters are: ");
    Path.InvalidPathChars, 0, Path.InvalidPathChars.Length);

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

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