In the olden days data binding is very difficult thing but the technology has developed very well and there are many simple ways of binding the data, and the data binding can be done significantly and in variety ways, though tremendous changes have taken place in all the features the binding of the data has changed very little. Simple control data binding means processing the single value of binding, it controls like text boxes, check boxes and radio buttons, there is also flexible and intuitive approach which provides consisting behavior for
XPointer allows you to walk the tree of nodes that an XML document is comprised of to address a specific node or nodes. XPointer expands the syntax set forth by XPath to provide a means of creating fragment identifiers, which are used to specify parts of documents. XPointer provides considerably more control over the referencing of XML document data than the hyperlink approach employed by HTML. For example, XPointer allows you to do things such as address an element with a given value within a list of elements of a given type. You use XPointer
XQuery is a query language (with some programming language features) that is designed to query collections of XML data. It is semantically similar to SQL.
XQuery 1.0 was developed by the XML Query working group of the W3C. The work was closely coordinated with the development of XSLT 2.0 by the XSL Working Group; the two groups shared responsibility for XPath 2.0, which is a subset of XQuery 1.0. XQuery 1.0 became a W3C Recommendation on January 23, 2007.
"The mission of the XML Query project is to provide flexible query facilities to extract data
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