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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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<!-- Documenting T:NAnt.Core.Tasks.XmlPeekTask-->
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<title><xmlpeek> Task</title>
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<img alt="->" src="../images/arrow.gif" /> <xmlpeek></td>
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v0.85</td>
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<h1><xmlpeek></h1>
<p> Extracts text from an XML file at the location specified by an XPath expression. </p>
<p> If the XPath expression specifies multiple nodes the node index is used to determine which of the nodes' text is returned. </p>
<h3>Parameters</h3>
<div class="table">
<table>
<tr>
<th>Attribute</th>
<th style="text-align: center;">Type</th>
<th>Description</th>
<th style="text-align: center;">Required</th>
</tr>
<tr>
<td valign="top" class="required">file</td>
<td style="text-align: center;">file</td>
<td> The name of the file that contains the XML document that is going to be peeked at. </td>
<td style="text-align: center;">True</td>
</tr>
<tr>
<td valign="top" class="required">property</td>
<td style="text-align: center;">string</td>
<td> The property that receives the text representation of the XML inside the node returned from the XPath expression. </td>
<td style="text-align: center;">True</td>
</tr>
<tr>
<td valign="top" class="required">xpath</td>
<td style="text-align: center;">string</td>
<td> The XPath expression used to select which node to read. </td>
<td style="text-align: center;">True</td>
</tr>
<tr>
<td valign="top">nodeindex</td>
<td style="text-align: center;">int</td>
<td> The index of the node that gets its text returned when the query returns multiple nodes. </td>
<td style="text-align: center;">False</td>
</tr>
<tr>
<td valign="top">failonerror</td>
<td style="text-align: center;">bool</td>
<td> Determines if task failure stops the build, or is just reported. The default is <b>true</b>. </td>
<td style="text-align: center;">False</td>
</tr>
<tr>
<td valign="top">if</td>
<td style="text-align: center;">bool</td>
<td> If <b>true</b> then the task will be executed; otherwise, skipped. The default is <b>true</b>. </td>
<td style="text-align: center;">False</td>
</tr>
<tr>
<td valign="top">unless</td>
<td style="text-align: center;">bool</td>
<td> Opposite of <code>if</code>. If <b>false</b> then the task will be executed; otherwise, skipped. The default is <b>false</b>. </td>
<td style="text-align: center;">False</td>
</tr>
<tr>
<td valign="top">verbose</td>
<td style="text-align: center;">bool</td>
<td> Determines whether the task should report detailed build log messages. The default is <b>false</b>. </td>
<td style="text-align: center;">False</td>
</tr>
</table>
</div>
<h3>Nested Elements:</h3>
<!--Collection-->
<h4>
<a id="namespaces">
</a>
<namespaces>
</h4>
<div class="nested-element"> Namespace definitions to resolve prefixes in the XPath expression. <h5><namespace></h5><div class="nested-element"><p> Represents an XML namespace. </p><h3>Parameters</h3><div class="table"><table><tr><th>Attribute</th><th style="text-align: center;">Type</th><th>Description</th><th style="text-align: center;">Required</th></tr><tr><td valign="top" class="required">prefix</td><td style="text-align: center;">string</td><td> The prefix to associate with the namespace. </td><td style="text-align: center;">True</td></tr><tr><td valign="top" class="required">uri</td><td style="text-align: center;">string</td><td> The associated XML namespace URI. </td><td style="text-align: center;">True</td></tr><tr><td valign="top">if</td><td style="text-align: center;">bool</td><td> Indicates if the namespace should be added to the <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfSystemXmlXmlNamespaceManagerClassTopic.asp">XmlNamespaceManager</a>. If <b>true</b> then the namespace will be added; otherwise, skipped. The default is <b>true</b>. </td><td style="text-align: center;">False</td></tr><tr><td valign="top">unless</td><td style="text-align: center;">bool</td><td> Indicates if the namespace should not be added to the <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfSystemXmlXmlNamespaceManagerClassTopic.asp">XmlNamespaceManager</a>. list. If <b>false</b> then the parameter will be added; otherwise, skipped. The default is <b>false</b>. </td><td style="text-align: center;">False</td></tr></table></div></div><h5></namespace></h5></div>
<h4></namespaces></h4>
<h3>Examples</h3>
<ul class="examples">
<li>
<p> The example provided assumes that the following XML file (App.config) exists in the current build directory. </p>
<pre class="code">
<?xml version="1.0" encoding="utf-8" ?>
<configuration xmlns="http://www.gordic.cz/shared/project-config/v_1.0.0.0">
<appSettings>
<add key="server" value="testhost.somecompany.com" />
</appSettings>
</configuration>
</pre>
</li>
<li>
<p> The example will read the server value from the above configuration file. </p>
<pre class="code">
<xmlpeek
file="App.config"
xpath="/x:configuration/x:appSettings/x:add[@key = 'server']/@value"
property="configuration.server">
<namespaces>
<namespace prefix="x" uri="http://www.gordic.cz/shared/project-config/v_1.0.0.0" />
</namespaces>
</xmlpeek>
</pre>
</li>
</ul>
<h3>Requirements</h3>
<div style="margin-left: 20px;">
<b>Assembly:</b> NAnt.Core (0.85.2478.0)
</div>
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