# GrapeCity.ActiveReports.ReportsCore.Data.DataProviders.PostgreSQLSchemaProvider.ColumnData.Constraint

## Content

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




  <h1 id="GrapeCity_ActiveReports_ReportsCore_Data_DataProviders_PostgreSQLSchemaProvider_ColumnData_Constraint" data-uid="GrapeCity.ActiveReports.ReportsCore.Data.DataProviders.PostgreSQLSchemaProvider.ColumnData.Constraint" class="text-break">PostgreSQLSchemaProvider.ColumnData.Constraint Enum
</h1>
  <div class="markdown level0 summary"></div>
  <div class="markdown level0 conceptual"></div>
  <h6><strong>Namespace</strong>: <a class="xref" href="GrapeCity.ActiveReports.ReportsCore.Data.DataProviders.html">GrapeCity.ActiveReports.ReportsCore.Data.DataProviders</a></h6>
  <h6><strong>Assembly</strong>: MESCIUS.ActiveReports.dll</h6>
  <h5 id="GrapeCity_ActiveReports_ReportsCore_Data_DataProviders_PostgreSQLSchemaProvider_ColumnData_Constraint_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">[Flags]
public enum PostgreSQLSchemaProvider.ColumnData.Constraint</code></pre>
  </div>
  <h3 id="fields">Fields
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    <thead>
    </thead></thead><tbody>
      <tr>
        <td id="GrapeCity_ActiveReports_ReportsCore_Data_DataProviders_PostgreSQLSchemaProvider_ColumnData_Constraint_None">None</td>
        <td></td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_ReportsCore_Data_DataProviders_PostgreSQLSchemaProvider_ColumnData_Constraint_NotNullable">NotNullable</td>
        <td></td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_ReportsCore_Data_DataProviders_PostgreSQLSchemaProvider_ColumnData_Constraint_PrimaryKey">PrimaryKey</td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h3 id="extensionmethods">Extension Methods</h3>
  <div>
      <a class="xref" href="GrapeCity.ActiveReports.ReportsCore.Tools.ObjectExtensions.ApplyDefaults.html#GrapeCity_ActiveReports_ReportsCore_Tools_ObjectExtensions_ApplyDefaults__1___0_">ObjectExtensions.ApplyDefaults&lt;PostgreSQLSchemaProvider.ColumnData.Constraint&gt;(PostgreSQLSchemaProvider.ColumnData.Constraint)</a>
  </div>
  <div>
      <a class="xref" href="GrapeCity.ActiveReports.ReportsCore.Tools.ObjectExtensions.SetValue.html#GrapeCity_ActiveReports_ReportsCore_Tools_ObjectExtensions_SetValue__1___0_System_ComponentModel_PropertyDescriptor_System_String_">ObjectExtensions.SetValue&lt;PostgreSQLSchemaProvider.ColumnData.Constraint&gt;(PostgreSQLSchemaProvider.ColumnData.Constraint, PropertyDescriptor, string)</a>
  </div>
  <div>
      <a class="xref" href="GrapeCity.ActiveReports.ReportsCore.Tools.ObjectExtensions.ToNameValueCollection.html#GrapeCity_ActiveReports_ReportsCore_Tools_ObjectExtensions_ToNameValueCollection_System_Object_">ObjectExtensions.ToNameValueCollection(object)</a>
  </div>
</div>