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<img alt="->" src="../images/arrow.gif" /> <available></td>
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v0.91</td>
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<h1><available></h1>
<p>
<i>(Deprecated)</i>
</p>
<p> Checks if a resource is available at runtime. </p>
<p> The specified property is set to <b>true</b> if the requested resource is available at runtime, and <b>false</b> if the resource is not available. </p>
<p class="i2">
<b>Note:</b> we advise you to use the following functions instead: </p>
<div class="table">
<table>
<tr>
<th>Function</th>
<th>Description</th>
</tr>
<tr>
<td>
<a href="../functions/file.exists(System.String).html">file::exists()</a>
</td>
<td>Determines whether the specified file exists.</td>
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<tr>
<td>
<a href="../functions/directory.exists(System.String).html">directory::exists()</a>
</td>
<td>Determines whether the given path refers to an existing directory on disk.</td>
</tr>
<tr>
<td>
<a href="../functions/framework.exists(System.String).html">framework::exists()</a>
</td>
<td>Checks whether the specified framework exists..</td>
</tr>
<tr>
<td>
<a href="../functions/framework.sdk-exists(System.String).html">framework::sdk-exists()</a>
</td>
<td>Checks whether the SDK for the specified framework is installed.</td>
</tr>
</table>
</div>
<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">property</td>
<td style="text-align: center;">string</td>
<td> The property that must be set if the resource is available. </td>
<td style="text-align: center;">True</td>
</tr>
<tr>
<td valign="top" class="required">resource</td>
<td style="text-align: center;">string</td>
<td> The resource which must be available. </td>
<td style="text-align: center;">True</td>
</tr>
<tr>
<td valign="top" class="required">type</td>
<td style="text-align: center;">
<a href="../enums/NAnt.Core.Tasks.AvailableTask.ResourceType.html">ResourceType</a>
</td>
<td> The type of resource which must be present. </td>
<td style="text-align: center;">True</td>
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<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>
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<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>
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<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>Examples</h3>
<ul class="examples">
<li>
<p> Sets the <code>myfile.present</code> property to <b>true</b> if the file is available on the filesystem and <b>false</b> if the file is not available. </p>
<pre class="code">
<available type="File" resource="myfile.txt" property="myfile.present" />
</pre>
</li>
<li>
<p> Sets the <code>build.dir.present</code> property to <b>true</b> if the directory is available on the filesystem and <b>false</b> if the directory is not available. </p>
<pre class="code">
<available type="Directory" resource="build" property="build.dir.present" />
</pre>
</li>
<li>
<p> Sets the <code>mono-0.21.framework.present</code> property to <b>true</b> if the Mono 0.21 framework is available on the current system and <b>false</b> if the framework is not available. </p>
<pre class="code">
<available type="Framework" resource="mono-0.21" property="mono-0.21.framework.present" />
</pre>
</li>
<li>
<p> Sets the <code>net-1.1.frameworksdk.present</code> property to <b>true</b> if the .NET 1.1 Framework SDK is available on the current system and <b>false</b> if the SDK is not available. </p>
<pre class="code">
<available type="FrameworkSDK" resource="net-1.1" property="net-1.1.frameworksdk.present" />
</pre>
</li>
</ul>
<h3>Requirements</h3>
<div style="margin-left: 20px;">
<b>Assembly:</b> NAnt.Core (0.91.4312.0)
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