# C1.DataConnector.ColumnExpression

## Content

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



  <h1 id="C1_DataConnector_ColumnExpression" data-uid="C1.DataConnector.ColumnExpression" class="text-break">ColumnExpression Class
</h1>
  <div class="markdown level0 summary"><p>A class that represents a SQL column expression</p>
</div>
  <div class="markdown level0 conceptual"></div>
  <div class="inheritance">
    <h5>Inheritance</h5>
    <div class="level0"><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
    <div class="level1"><span class="xref">ColumnExpression</span></div>
  </div>
  <div class="implements">
    <h5>Implements</h5>
    <div><a class="xref" href="C1.DataConnector.IExpression.html">IExpression</a></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.DataConnector.html">C1.DataConnector</a></h6>
  <h6><strong>Assembly</strong>: C1.DataConnector.dll</h6>
  <h5 id="C1_DataConnector_ColumnExpression_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public class ColumnExpression : IExpression</code></pre>
  </div>
  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">Public Class ColumnExpression
    Implements IExpression</code></pre>
  </div>
  <h3 id="constructors">Constructors
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_DataConnector_ColumnExpression__ctor" data-uid="C1.DataConnector.ColumnExpression.#ctor">
          <a class="xref" href="C1.DataConnector.ColumnExpression.-ctor.html#C1_DataConnector_ColumnExpression__ctor">ColumnExpression()</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
    </tbody>
  </table>
  <h3 id="properties">Properties
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_DataConnector_ColumnExpression_Alias" data-uid="C1.DataConnector.ColumnExpression.Alias">
          <a class="xref" href="C1.DataConnector.ColumnExpression.Alias.html#C1_DataConnector_ColumnExpression_Alias">Alias</a>
        </td>
        <td class="markdown level1 summary"><p>The alias</p>
</td>
      </tr>
      <tr>
        <td id="C1_DataConnector_ColumnExpression_ColumnName" data-uid="C1.DataConnector.ColumnExpression.ColumnName">
          <a class="xref" href="C1.DataConnector.ColumnExpression.ColumnName.html#C1_DataConnector_ColumnExpression_ColumnName">ColumnName</a>
        </td>
        <td class="markdown level1 summary"><p>The name of the column</p>
</td>
      </tr>
      <tr>
        <td id="C1_DataConnector_ColumnExpression_Database" data-uid="C1.DataConnector.ColumnExpression.Database">
          <a class="xref" href="C1.DataConnector.ColumnExpression.Database.html#C1_DataConnector_ColumnExpression_Database">Database</a>
        </td>
        <td class="markdown level1 summary"><p>The database identifier</p>
</td>
      </tr>
      <tr>
        <td id="C1_DataConnector_ColumnExpression_IsExpression" data-uid="C1.DataConnector.ColumnExpression.IsExpression">
          <a class="xref" href="C1.DataConnector.ColumnExpression.IsExpression.html#C1_DataConnector_ColumnExpression_IsExpression">IsExpression</a>
        </td>
        <td class="markdown level1 summary"><p>A boolean to check if this column expression is an expression. Not being an expression means that its a simple column name</p>
</td>
      </tr>
      <tr>
        <td id="C1_DataConnector_ColumnExpression_SubExpressions" data-uid="C1.DataConnector.ColumnExpression.SubExpressions">
          <a class="xref" href="C1.DataConnector.ColumnExpression.SubExpressions.html#C1_DataConnector_ColumnExpression_SubExpressions">SubExpressions</a>
        </td>
        <td class="markdown level1 summary"><p>The IExpression children that made this IExpression</p>
</td>
      </tr>
      <tr>
        <td id="C1_DataConnector_ColumnExpression_TableAlias" data-uid="C1.DataConnector.ColumnExpression.TableAlias">
          <a class="xref" href="C1.DataConnector.ColumnExpression.TableAlias.html#C1_DataConnector_ColumnExpression_TableAlias">TableAlias</a>
        </td>
        <td class="markdown level1 summary"><p>The table alias</p>
</td>
      </tr>
      <tr>
        <td id="C1_DataConnector_ColumnExpression_TableName" data-uid="C1.DataConnector.ColumnExpression.TableName">
          <a class="xref" href="C1.DataConnector.ColumnExpression.TableName.html#C1_DataConnector_ColumnExpression_TableName">TableName</a>
        </td>
        <td class="markdown level1 summary"><p>The name of the table</p>
</td>
      </tr>
      <tr>
        <td id="C1_DataConnector_ColumnExpression_Type" data-uid="C1.DataConnector.ColumnExpression.Type">
          <a class="xref" href="C1.DataConnector.ColumnExpression.Type.html#C1_DataConnector_ColumnExpression_Type">Type</a>
        </td>
        <td class="markdown level1 summary"><p>The type of the expression</p>
</td>
      </tr>
    </tbody>
  </table>

</div>