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<section>
<h2 id="query">
Querying old data with <code>query</code>
</h2>
<p class="alert alert-warning">
<a href="announcements-4.0.html#query-to-data-adapter" class="alert-link">Deprecated in Select2 4.0.</a>
This has been replaced by another option and is only available in the
<a href="index.html#builds-full" class="alert-link">full builds</a> of
Select2.
</p>
<p>
In the past, Select2 supported an option called <code>query</code> that
allowed for a custom data source to be used. This option has been replaced
by the <code>query</code> method on the
<a href="#dataAdapter">data adapter</a> and takes a very similar set of
parameters.
</p>
<div class="row">
<div class="col-sm-6">
<dl class="dl-horizontal">
<dt>Key</dt>
<dd>
<code>query</code>
</dd>
<dt>Value</dt>
<dd>
A function taking <code>params</code> (including a <code>callback</code>)
</dd>
</dl>
</div>
<div class="col-sm-6">
<dl class="dl-horizontal">
<dt>Adapter</dt>
<dd>
<code title="select2/data/base">DataAdapter</code>
</dd>
<dt>Decorator</dt>
<dd>
<code title="select2/compat/query">Query</code>
</dd>
</dl>
</div>
</div>
</section>
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