# IConstraint<no value>

{{< rawhtml >}}

            <article class="content wrap" id="_content" data-uid="ETLBox.IConstraint">
  <h1 id="ETLBox_IConstraint" data-uid="ETLBox.IConstraint" class="text-break">Interface IConstraint</h1>
  <div class="markdown level0 summary"></div>
  <div class="markdown level0 conceptual"></div>
<h6><strong>Namespace</strong>: ETLBox</h6>
  <h6><strong>Assembly</strong>: ETLBox.dll</h6>
  <h5 id="ETLBox_IConstraint_syntax">Syntax</h5>
{{< /rawhtml >}}

```C#
    public interface IConstraint
```

{{< rawhtml >}}
  <h3 id="properties">Properties
</h3>
  <a id="ETLBox_IConstraint_ColumnNames_" data-uid="ETLBox.IConstraint.ColumnNames*"></a>
  <h4 id="ETLBox_IConstraint_ColumnNames" data-uid="ETLBox.IConstraint.ColumnNames">ColumnNames</h4>
  <div class="markdown level1 summary"></div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="declaration">Declaration</h5>
{{< /rawhtml >}}

```C#
    IList<string> ColumnNames { get; }
```

{{< rawhtml >}}
  <h5 class="propertyValue">Property Value</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.collections.generic.ilist-1">IList</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a>&gt;</td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <a id="ETLBox_IConstraint_ConstraintName_" data-uid="ETLBox.IConstraint.ConstraintName*"></a>
  <h4 id="ETLBox_IConstraint_ConstraintName" data-uid="ETLBox.IConstraint.ConstraintName">ConstraintName</h4>
  <div class="markdown level1 summary"></div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="declaration">Declaration</h5>
{{< /rawhtml >}}

```C#
    string ConstraintName { get; }
```

{{< rawhtml >}}
  <h5 class="propertyValue">Property Value</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.string">string</a></td>
        <td></td>
      </tr>
    </tbody>
  </table>

{{< /rawhtml >}}
