# C1.Framework.CharHelper.IsKatakana

## Content

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



<h1 id="C1_Framework_CharHelper_IsKatakana_" data-uid="C1.Framework.CharHelper.IsKatakana*">IsKatakana Method
</h1>
<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_Framework_CharHelper_IsKatakana_" data-uid="C1.Framework.CharHelper.IsKatakana*"></a>
<h4 id="C1_Framework_CharHelper_IsKatakana_System_Char_" data-uid="C1.Framework.CharHelper.IsKatakana(System.Char)">IsKatakana(char)</h4>
<div class="markdown level1 summary"><p>Indicates whether the specified Unicode character is
categorized as a Katakana letter.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">public static bool IsKatakana(char c)</code></pre>
</div>
<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Shared Function IsKatakana(c As Char) 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.char">char</a></td>
      <td><span class="parametername">c</span></td>
      <td><p>A Unicode character.</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 c is a Katakana character; otherwise, false.</p>
</td>
    </tr>
  </tbody>
</table>


<a id="C1_Framework_CharHelper_IsKatakana_" data-uid="C1.Framework.CharHelper.IsKatakana*"></a>
<h4 id="C1_Framework_CharHelper_IsKatakana_System_String_System_Int32_" data-uid="C1.Framework.CharHelper.IsKatakana(System.String,System.Int32)">IsKatakana(string, int)</h4>
<div class="markdown level1 summary"><p>Indicates wether the character at the specified position
in the specified string is a Katakana character.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">public static bool IsKatakana(string s, int index)</code></pre>
</div>
<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Shared Function IsKatakana(s As String, index As Integer) 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">s</span></td>
      <td><p>A string.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">index</span></td>
      <td><p>The character position in s.</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 character at position index in s is a Katakana
character; otherwise, false.</p>
</td>
    </tr>
  </tbody>
</table>
</div>