WriteBase64 Method
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XmlWriter.WriteBase64 Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

When overridden in a derived class, encodes the specified binary bytes as Base64 and writes out the resulting text.

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

public abstract void WriteBase64(
	byte[] buffer,
	int index,
	int count
)

Parameters

buffer
Type: System.Byte []
Byte array to encode.
index
Type: System.Int32
The position in the buffer indicating the start of the bytes to write.
count
Type: System.Int32
The number of bytes to write.

ExceptionCondition
ArgumentNullException

buffer is null.

ArgumentOutOfRangeException

index or count is less than zero.

-or-

The buffer length minus index is less than count.

For example, the byte buffer may contain the binary contents of a GIF image. This clearly would not be valid XML. The Base64 encoding is designed to represent arbitrary byte sequences in a text form comprised of the 65 US-ASCII characters ([A-Za-z0-9+/=]) where each character encodes 6 bits of the binary data. For more information, see Requests for Comments (RFC) 1521 located on the Request for Comments Web site at http://www.rfc-editor.org/.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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