Count (XmlNodelist function): Difference between revisions
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<td>A numeric variable for the number of nodes on <var>XmlNodelist</var> <var class="term">nodl</var>. </td></tr> | <td>A numeric variable for the number of nodes on <var>XmlNodelist</var> <var class="term">nodl</var>. </td></tr> | ||
<tr><th>nodl</th> | <tr><th>nodl</th> | ||
<td>An <var>XmlNodelist</var> expression, specifying the <var> | <td>An <var>XmlNodelist</var> expression, specifying the <var>XmlNodelist</var> to count.</td></tr> | ||
</table> | </table> | ||
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==See also== | ==See also== | ||
<ul> | <ul> | ||
<li>[[SelectCount (XmlDoc/XmlNode function)|SelectCount]] counts the number of nodes in an | <li><var>[[SelectCount (XmlDoc/XmlNode function)|SelectCount]]</var> counts the number of nodes in an [[XPath#XPath_syntax|Xpath expression]] result. | ||
</ul> | </ul> | ||
{{Template:XmlNodelist:Count footer}} | {{Template:XmlNodelist:Count footer}} | ||
Revision as of 21:23, 23 May 2011
Number of nodes in this nodelist (XmlNodelist class)
Count returns the number of nodes in an XmlNodelist.
Syntax
%number = nodl:Count
Syntax terms
| %number | A numeric variable for the number of nodes on XmlNodelist nodl. |
|---|---|
| nodl | An XmlNodelist expression, specifying the XmlNodelist to count. |
Example
- In the following example, the Count method is used to limit a For loop which selectively adds nodes to the document:
begin %doc is object xmlDoc %doc = new %doc:loadXml('<top> <a>a1</a> <a>a2</a> <a>a3</a> </top>') %nl1 is object xmlNodelist %n1 is object xmlNode %n2 is object xmlNode %j is float %nl1 = %doc:selectNodes('/top/a') for %j from 1 to %nl1:count %n1 = %nl1:item(%j) %n2 = %n1:addElement('b', 'b' With %j) end for call %d1:print end
The example results follow:
<top> <a> a1 <b>b1</b> </a> <a> a2 <<b>b2</b> </a> <a> a3 <b>b3</b> </a> </top>
Request-Cancellation Errors
- Count has no request cancellation errors.
See also
- SelectCount counts the number of nodes in an Xpath expression result.