What are the core functionalities in XML .NET framework? Can
you
explain in detail those functionalities?
The XML API for the .NET Framework comprises the following
set of
functionalities:
XML readers With XML readers the client application gets
reference to
instance of reader class. Reader class allows you to scroll
forward
through the contents like moving from node to node or
element to
element. You can compare it with the
"SqlDataReader" object in
ADO.NET which is forward only. In short XML reader allows
you to browse
through the XML document.
XML writers
Using XML writers you can store the XML contents to any
other storage
media. For instance you want to store the whole in memory
XML to a
physical file or any other media.
XML document classes
XML documents provides an in memory representation for the
data in an
XMLDOM structure as defined by W3C. It also supports
browsing and
editing of the document. So it gives you a complete in
memory tree
structure representation of your XML document.
What is XSLT?
XSLT is a rules based language used to transform XML
documents in to
other file formats. XSLT are nothing but generic
transformation rules
which can be applied to transform XML document to HTML, CSV,
Rich text
etc.
Define XPATH?
It's an XML query language to select specific parts of an
XML
document. Using XPATH you can address or filter elements and
text in a
XML document. For instance a simple XPATH expression like
"Invoice/Amount" states find
"Amount" node which are child's
of "Invoice" node.
What's the concept of XPOINTER?
XPOINTER is used to locate data within XML document.
XPOINTER can point
to a particular portion of a XML document for instance
address.xml#xpointer(/descendant::streetnumber[ id=9]).So
the above
XPOINTER points streetnumber=9 in "address.xml".
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