Count (XmlNodelist function): Difference between revisions
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{{Template:XmlNodelist:Count subtitle}} | {{Template:XmlNodelist:Count subtitle}} | ||
==Syntax== | ==Syntax== | ||
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<table class="syntaxTable"> | <table class="syntaxTable"> | ||
<tr><th>%number</th> | <tr><th>%number</th> | ||
<td>A numeric variable for the number of nodes | <td>A numeric variable for the number of nodes in <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>XmlNodelist</var> to count.</td></tr> | <td>An <var>XmlNodelist</var> expression, specifying the <var>XmlNodelist</var> to count.</td></tr> | ||
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==Example== | ==Example== | ||
In the following example, the <var>Count</var> method is used to limit a For loop which selectively adds nodes to the document: | In the following example, the <var>Count</var> method is used to limit a <var>For</var> loop which selectively adds nodes to the document: | ||
<p class="code">begin | <p class="code">begin | ||
%doc is object xmlDoc | %doc is object xmlDoc | ||
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</p> | </p> | ||
==Request- | ==Request-cancellation errors== | ||
<ul> | <ul> | ||
<li><var>Count</var> has no request cancellation errors. | <li><var>Count</var> has no request-cancellation errors. | ||
</ul> | </ul> | ||
Latest revision as of 21:12, 31 May 2011
Number of nodes in this nodelist (XmlNodelist class)
Syntax
%number = nodl:Count
Syntax terms
| %number | A numeric variable for the number of nodes in 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.