# C1.CalcEngine.ExpressionItem.-ctor

## Content

<div class="doc-site-dotnet-api-container">



<h1 id="C1_CalcEngine_ExpressionItem__ctor_" data-uid="C1.CalcEngine.ExpressionItem.#ctor*">ExpressionItem Constructor
</h1>
<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_CalcEngine_ExpressionItem__ctor_" data-uid="C1.CalcEngine.ExpressionItem.#ctor*"></a>
<h4 id="C1_CalcEngine_ExpressionItem__ctor_System_String_System_String_C1_CalcEngine_ItemType_" data-uid="C1.CalcEngine.ExpressionItem.#ctor(System.String,System.String,C1.CalcEngine.ItemType)">ExpressionItem(string, string, ItemType)</h4>
<div class="markdown level1 summary"><p>Initializes a new instance of the <a class="xref" href="C1.CalcEngine.ExpressionItem.html">ExpressionItem</a> class.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">public ExpressionItem(string name, string syntax, ItemType type)</code></pre>
</div>
<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Sub New(name As String, syntax As String, type As ItemType)</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">name</span></td>
      <td><p>The name of expression item.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></td>
      <td><span class="parametername">syntax</span></td>
      <td><p>The name of expression item in syntax of filter expression.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="C1.CalcEngine.ItemType.html">ItemType</a></td>
      <td><span class="parametername">type</span></td>
      <td><p>The type of expression item.</p>
</td>
    </tr>
  </tbody>
</table>


<a id="C1_CalcEngine_ExpressionItem__ctor_" data-uid="C1.CalcEngine.ExpressionItem.#ctor*"></a>
<h4 id="C1_CalcEngine_ExpressionItem__ctor_System_String_System_String_System_String_C1_CalcEngine_ItemType_" data-uid="C1.CalcEngine.ExpressionItem.#ctor(System.String,System.String,System.String,C1.CalcEngine.ItemType)">ExpressionItem(string, string, string, ItemType)</h4>
<div class="markdown level1 summary"><p>Initializes a new instance of the <a class="xref" href="C1.CalcEngine.ExpressionItem.html">ExpressionItem</a> class.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">public ExpressionItem(string name, string syntax, string description, ItemType type)</code></pre>
</div>
<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Sub New(name As String, syntax As String, description As String, type As ItemType)</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">name</span></td>
      <td><p>The name of expression item.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></td>
      <td><span class="parametername">syntax</span></td>
      <td><p>The name of expression item in syntax of filter expression.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></td>
      <td><span class="parametername">description</span></td>
      <td><p>The description of expression item.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="C1.CalcEngine.ItemType.html">ItemType</a></td>
      <td><span class="parametername">type</span></td>
      <td><p>The type of expression item.</p>
</td>
    </tr>
  </tbody>
</table>
</div>
