# C1.CalcEngine.ExpressionEngine.IExpressionSyntax.RegisterToken

## Content

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<h1 id="C1_CalcEngine_ExpressionEngine_IExpressionSyntax_RegisterToken_" data-uid="C1.CalcEngine.ExpressionEngine.IExpressionSyntax.RegisterToken*">RegisterToken Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_CalcEngine_ExpressionEngine_IExpressionSyntax_RegisterToken_" data-uid="C1.CalcEngine.ExpressionEngine.IExpressionSyntax.RegisterToken*"></a>
<h4 id="C1_CalcEngine_ExpressionEngine_IExpressionSyntax_RegisterToken_System_Object_C1_CalcEngine_ExpressionEngine_TKID_C1_CalcEngine_ExpressionEngine_TKTYPE_" data-uid="C1.CalcEngine.ExpressionEngine.IExpressionSyntax.RegisterToken(System.Object,C1.CalcEngine.ExpressionEngine.TKID,C1.CalcEngine.ExpressionEngine.TKTYPE)">RegisterToken(object, TKID, TKTYPE)</h4>
<div class="markdown level1 summary"><p>Registers a token that can be evaluated by expression engine.</p>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">void RegisterToken(object key, TKID tokenId, TKTYPE tokenType)</code></pre>
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  <pre><code class="lang-vbnet hljs">Sub RegisterToken(key As Object, tokenId As TKID, tokenType As TKTYPE)</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="https://learn.microsoft.com/dotnet/api/system.object">object</a></td>
      <td><span class="parametername">key</span></td>
      <td><p>Token key.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="C1.CalcEngine.ExpressionEngine.TKID.html">TKID</a></td>
      <td><span class="parametername">tokenId</span></td>
      <td><p>Token identificator.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="C1.CalcEngine.ExpressionEngine.TKTYPE.html">TKTYPE</a></td>
      <td><span class="parametername">tokenType</span></td>
      <td><p>Token type.</p>
</td>
    </tr>
  </tbody>
</table>
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