# C1.Win.C1Editor.C1TextRange.IsClassApplied

## Content

<div class="doc-site-dotnet-api-container">



<h1 id="C1_Win_C1Editor_C1TextRange_IsClassApplied_" data-uid="C1.Win.C1Editor.C1TextRange.IsClassApplied*">IsClassApplied Method
</h1>
<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_Win_C1Editor_C1TextRange_IsClassApplied_" data-uid="C1.Win.C1Editor.C1TextRange.IsClassApplied*"></a>
<h4 id="C1_Win_C1Editor_C1TextRange_IsClassApplied_System_String_" data-uid="C1.Win.C1Editor.C1TextRange.IsClassApplied(System.String)">IsClassApplied(string)</h4>
<div class="markdown level1 summary"><p>Returns a value indicating whether the specified CSS class is applied to the <a class="xref" href="C1.Win.C1Editor.C1TextRange.html">C1TextRange</a>.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">public bool IsClassApplied(string className)</code></pre>
</div>
<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Function IsClassApplied(className As String) As Boolean</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></td>
      <td><span class="parametername">className</span></td>
      <td><p>The CSS class name to check.</p>
</td>
    </tr>
  </tbody>
</table>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.boolean">bool</a></td>
      <td><p>True, if the CSS class is applied to the range; otherwise, False.</p>
</td>
    </tr>
  </tbody>
</table>
<h5 id="C1_Win_C1Editor_C1TextRange_IsClassApplied_System_String__examples">Examples</h5>
<p>This example updates some UI controls depending on the style of the selected text.
<pre><code class="lang-csharp">function UpdateUI()
{
if (_editor.Mode == EditorMode.Design)
{
_button1.Enabled = _editor.Selection.IsClassApplied(&quot;topic&quot;);
_button2.Enabled = _editor.Selection.IsClassApplied(&quot;book&quot;);<br>
}
}</code></pre>

</div>