Validating Reader. Read Content AsBase64(Byte, Int32, Int32) Method
Reads the content and returns the Base64 decoded binary bytes.
public: override int ReadContentAsBase64(cli::array <System::Byte> ^ buffer, int index, int count);
public override int ReadContentAsBase64 (byte buffer, int index, int count);
override this.ReadContentAsBase64 : byte * int * int -> int
Public Overrides Function ReadContentAsBase64 (buffer As Byte(), index As Integer, count As Integer) As Integer
The buffer into which to copy the resulting text. This value cannot be
The offset into the buffer where to start copying the result.
The maximum number of bytes to copy into the buffer. The actual number of bytes copied is returned from this method.
The number of bytes written to the buffer.
buffer value is
ReadContentAsBase64(Byte, Int32, Int32) is not supported on the current node.
The index into the buffer or index + count is larger than the allocated buffer size.
The XmlValidatingReader class is obsolete in .NET Framework 2.0. You can create a validating XmlReader instance by using the XmlReaderSettings class and the Create method. For more information, see the Remarks section of the XmlReader reference page.
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.
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, and DocumentFragment.