XmlWriter.WriteBase64 Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
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)
Syntax
'Declaration
Public MustOverride Sub WriteBase64 ( _
buffer As Byte(), _
index As Integer, _
count As Integer _
)
public abstract void WriteBase64(
byte[] buffer,
int index,
int count
)
Parameters
- buffer
Type: array<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.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | buffer is nulla null reference (Nothing in Visual Basic). |
| ArgumentOutOfRangeException | index or count is less than zero. -or- The buffer length minus index is less than count. |
Remarks
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/.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
See Also