# C1.WPF.RichTextBox.Documents.C1TextElementStyle.ContainsKey

## Content

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<h1 id="C1_WPF_RichTextBox_Documents_C1TextElementStyle_ContainsKey_" data-uid="C1.WPF.RichTextBox.Documents.C1TextElementStyle.ContainsKey*">ContainsKey Method
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<a id="C1_WPF_RichTextBox_Documents_C1TextElementStyle_ContainsKey_" data-uid="C1.WPF.RichTextBox.Documents.C1TextElementStyle.ContainsKey*"></a>
<h4 id="C1_WPF_RichTextBox_Documents_C1TextElementStyle_ContainsKey_C1_WPF_RichTextBox_Documents_StyleProperty_" data-uid="C1.WPF.RichTextBox.Documents.C1TextElementStyle.ContainsKey(C1.WPF.RichTextBox.Documents.StyleProperty)">ContainsKey(StyleProperty)</h4>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public bool ContainsKey(StyleProperty key)</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Function ContainsKey(key As StyleProperty) As Boolean</code></pre>
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<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="C1.WPF.RichTextBox.Documents.StyleProperty.html">StyleProperty</a></td>
      <td><span class="parametername">key</span></td>
      <td></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></td>
    </tr>
  </tbody>
</table>
<h5 class="implements">Implements</h5>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.idictionary-2.containskey">IDictionary&lt;TKey, TValue&gt;.ContainsKey(TKey)</a></div>
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