The saying among Web heads is that content is king. Unfortunately, too often that content is intimately tied to how it's displayed. How many times have you come across a Web site with a little disclaimer saying "Best viewed at 800-by-600-pixel resolution"?

XML will help solve that problem because, rather than specifying where to display something, Web builders will be able to specify the structure of the document. For example, you can specify the document's title, its author, a list of related links, and so on. Then any device with an XML browser--a palm-top computer, a set-top box, or a high-powered workstation, for example--will be able to render a version of the document specifically tailored to that device. ...read more

can u Explain About the XPATH?

__________________
M.Ramesh Kumar

Hi MRamesh,

XML Path Language is a W3C specification that defines syntax for addressing parts of XML document. XML document is considered as a logical tree structure, and syntax based on this consideration is used to address elements and attributes at any level in the XML document.

For example, considering the XML document described above in answer to question 2, /abc:Employees/abc:Emp/@EmpID XPath expression can be used to access the EmpID attribute under the Emp element under the Employees document element.

XPath is used in various other specifications such as XSLT.

Thanks/Regards.

M.Sundaram

Hi,
XPath is the one from which the SubMenu should start.

For eg:
Consider the Following
-> Book
----->Author
----------->BalaGuruSamy
------------------------>C
------------------------>C++
------------------------>Java
----------->Kanitkar
------------------------>C
------------------------>C++
------------------------>Java
In the above example the Book has SubMenu->Author
I dont want to display the Author instead i want to display BalaGurusamy,Kanitkar and its subMenus.

i.e...

-->Book
->BalaGuruSamy
->Kanitkar
Like this i want
For this we can use XPath="/*/*"->'/*' is used to indicate the starting node of submenus to be displayed.

Hi,

Nice tips.
This is very good topic. Nowadays the Net data trasactions are formalised as XML and used in internet applications. But there will be some flaws in XML transaction like you cannot transfer huge amount of data via this format since the data will be becoming huge size with these XML tags. So, can anyone explain, is there any technics to solve this huge amount data transaction problem in XML?

thanks

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Karpagarajan. R
Necessity is the mother of invention

What is XPath?
* XPath is a syntax for defining parts of an XML document
* XPath uses path expressions to navigate in XML documents
* XPath contains a library of standard functions
* XPath is a major element in XSLT
* XPath is a W3C Standard

XPath is a way of pulling out particular data from an XML document. It is used by XSL to determine what should be output in your documents. It is essentially a systematic way of defining an address of each piece of data.

For example, if you have a nested set of tags:
<person>
<age>46</age>
<surname>Adams</surname>
<age>28</age>
<surname>Jones</surname>
</person>

You can pull out just the surnames by the XPATH expression "person/surname". This returns all the surnames inside the person tag, in our example this would return "AdamsJones".

As well as these addresses, XPath lets you use a raft of functions to work with the data returned from your specified address. For example you can use the UpperCase function to change the case of the output. upper-case(person/surname) returns ADAMSJONES.

For the technical author who wants to dabble at this level, XPath combined with XSL enables you to generate datasheets from raw xml data. If your help content is in an XML compliant form (such as XHTML), these technologies also enable you to transform it to a variety of other formats and medium, such as web or pdf.