XmlTextReader.ReadContentAsBinHex Method (Byte[], Int32, Int32)


Reads the content and returns the BinHex decoded binary bytes.

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

override ReadContentAsBinHex : 
        buffer:byte[] *
        index:int *
        count:int -> int


Type: System.Byte[]

The buffer into which to copy the resulting text. This value cannot be null.

Type: System.Int32

The offset into the buffer where to start copying the result.

Type: System.Int32

The maximum number of bytes to copy into the buffer. The actual number of bytes copied is returned from this method.

Return Value

Type: System.Int32

The number of bytes written to the buffer.

Exception Condition

The buffer value is null.


ReadContentAsBinHex is not supported on the current node.


The index into the buffer or index + count is larger than the allocated buffer size.


The XmlTextReader implementation does not support this method.


Starting with the .NET Framework 2.0, we recommend that you create XmlReader instances by using the XmlReader.Create method to take advantage of new functionality.

This method streams the content, decodes the BinHex content, and returns the decoded binary bytes (for example, an inline BinHex encoded GIF image) into the buffer. This method can be called successively to read large streams of embedded text.


You should not access any of the reader properties between calls to the ReadContentAsBinHex method until the method returns the value 0.

This method has the following behavior:

  • ReadContentAsBinHex 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.

  • ReadContentAsBinHex is not supported on the following XML node types: Element, XmlDeclaration, None, Document, DocumentType, Notation, Entity, DocumentFragment.

.NET Framework
Available since 2.0
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