# GrapeCity.Enterprise.Data.Expressions.ExpressionExtensions.IsFunc

## Content

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<h1 id="GrapeCity_Enterprise_Data_Expressions_ExpressionExtensions_IsFunc_" data-uid="GrapeCity.Enterprise.Data.Expressions.ExpressionExtensions.IsFunc*">IsFunc Method
</h1>
<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="GrapeCity_Enterprise_Data_Expressions_ExpressionExtensions_IsFunc_" data-uid="GrapeCity.Enterprise.Data.Expressions.ExpressionExtensions.IsFunc*"></a>
<h4 id="GrapeCity_Enterprise_Data_Expressions_ExpressionExtensions_IsFunc_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo_System_String___" data-uid="GrapeCity.Enterprise.Data.Expressions.ExpressionExtensions.IsFunc(GrapeCity.Enterprise.Data.Expressions.ExpressionInfo,System.String[])">IsFunc(ExpressionInfo, params string[])</h4>
<div class="markdown level1 summary"><p>Checks if given expression is function from a given list.</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">[Obsolete(&quot;To be moved to the ExpressionInfo or Rendering assembly.&quot;)]
public static bool IsFunc(this ExpressionInfo t, params string[] names)</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="GrapeCity.Enterprise.Data.Expressions.ExpressionInfo.html">ExpressionInfo</a></td>
      <td><span class="parametername">t</span></td>
      <td><p>Expression to check.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a>[]</td>
      <td><span class="parametername">names</span></td>
      <td><p>Function names to search.</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></td>
    </tr>
  </tbody>
</table>
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