>> English << | česky | Nederlands | Français | Español | По-русски | Deutsch | 中文 | Italiano | Polski ZVON > Tutorials > XPath Tutorial
Intro / Search / ZVON
>> Example 22 << | Prev | Next

The div operator performs floating-point division, the mod operator returns the remainder from a truncating division. The floor function returns the largest (closest to positive infinity) number that is not greater than the argument and that is an integer.The ceiling function returns the smallest (closest to negative infinity) number that is not less than the argument and that is an integer.
 
//BBB[position() mod 2 = 0 ]
Select even BBB elements

     <AAA>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <CCC/>
          <CCC/>
          <CCC/>
     </AAA>
Open the example in XLab. | Tree view (JPG)
 
//BBB[ position() = floor(last() div 2 + 0.5) or position() = ceiling(last() div 2 + 0.5) ]
Select middle BBB element(s)

     <AAA>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <CCC/>
          <CCC/>
          <CCC/>
     </AAA>
Open the example in XLab. | Tree view (JPG)
 
//CCC[ position() = floor(last() div 2 + 0.5) or position() = ceiling(last() div 2 + 0.5) ]
Select middle CCC element(s)

     <AAA>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <BBB/>
          <CCC/>
          <CCC/>
          <CCC/>
     </AAA>
Open the example in XLab. | Tree view (JPG)



_____________________________________________
Reference Search | Sitemap | XML Glossary       ZVON | Systinet




Related sites:
  • dotNet Slackers - Your latest resource for ASP.NET
  • Dotnet Spider - Outsourcing and Offshore software development in India
  • XML - Xselerator, XSL Editor, BizTalk Utilities, XML Tutorials, Learn XML
  • Planet Source Code - The largest public source code database on the Internet
Domain Names VoIP Internettelefonie DSL, SDSL, ADSL UNLIMITED Web Hosting by HostDepartment conference call service
answering service