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XmlWriter.WriteChars Method

When overridden in a derived class, writes text one buffer at a time.

Namespace:  System.Xml
Assembly:  System.Xml (in System.Xml.dll)

public abstract void WriteChars(
	char[] buffer,
	int index,
	int count


Type: System.Char[]
Character array containing the text to write.
Type: System.Int32
The position in the buffer indicating the start of the text to write.
Type: System.Int32
The number of characters to write.


buffer is null.


index or count is less than zero.


The buffer length minus index is less than count; the call results in surrogate pair characters being split or an invalid surrogate pair being written.


The buffer parameter value is not valid.

This method can be used to write large amounts of text one buffer at a time.

Special handling must be done to ensure the WriteChars method does not split surrogate pair characters across multiple buffer writes. The XML specification defines the valid ranges for surrogate pairs.

			using (XmlWriter writer = XmlWriter.Create("WriteChars.xml"))

				char[] ch = new char[4];
				ch[0] = 't';
				ch[1] = 'e';
				ch[2] = 'x';
				ch[3] = 't';

				writer.WriteChars(ch, 0, ch.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.