Reads the content and returns the Base64 decoded binary bytes.
(in System.Xml.dll)
Visual Basic (Declaration)
Public Overrides Function ReadContentAsBase64 ( _
buffer As Byte(), _
index As Integer, _
count As Integer _
) As Integer
Dim instance As XmlTextReader
Dim buffer As Byte()
Dim index As Integer
Dim count As Integer
Dim returnValue As Integer
returnValue = instance.ReadContentAsBase64(buffer, _
index, count)
public override int ReadContentAsBase64(
byte[] buffer,
int index,
int count
)
public:
virtual int ReadContentAsBase64(
array<unsigned char>^ buffer,
int index,
int count
) override
public override function ReadContentAsBase64(
buffer : byte[],
index : int,
count : int
) : int
Parameters
- buffer
- Type: array<System..::.Byte>[]()[]
The buffer into which to copy the resulting text. This value cannot be nullNothingnullptra null reference (Nothing in Visual Basic).
- index
- Type: System..::.Int32
The offset into the buffer where to start copying the result.
- count
- Type: System..::.Int32
The maximum number of bytes to copy into the buffer. The actual number of bytes copied is returned from this method.
.gif) Note: |
|---|
In the .NET Framework version 2.0 release, the recommended practice is to create XmlReader instances using the XmlReader..::.Create method. This allows you to take full advantage of the new features introduced in this release. For more information, see Creating XML Readers. |
This method streams the content, decodes the Base64 content, and returns the decoded binary bytes (for example, an inline Base64-encoded GIF image) into the buffer. This method can be called successively to read large streams of embedded text. For more information, see RFC 1521, "MIME (Multipurpose Internet Mail Extensions) Part One: Mechanisms for Specifying and Describing the Format of Internet Message Bodies". You can obtain RFCs from the Request for Comments Web site at http://www.rfc-editor.org.
| Note: |
|---|
You should not access any of the reader properties between calls to the ReadContentAsBase64 method until the method returns the value 0. |
This method has the following behavior:
ReadContentAsBase64 returns the value 0 when it has reached the end of the byte stream it was operating on. The reader is positioned on the first non-content node.
If you ask for fewer, or the exact number, of bytes than are left in the stream the reader remains in its current position.
ReadContentAsBase64 is not supported on the following XML node types: Element, XmlDeclaration, None, Document, DocumentType, Notation, Entity, DocumentFragment.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0
.NET Compact Framework
Supported in: 3.5, 2.0
XNA Framework
Supported in: 3.0, 2.0, 1.0
Reference
ReadContentAsBase64
Other Resources