# GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions

## Content

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



  <h1 id="GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions" data-uid="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions" class="text-break">DataSetExtensions Class
</h1>
  <div class="markdown level0 summary"><p>Represents a set of extension methods for the <a class="xref" href="GrapeCity.ActiveReports.PageReportModel.Query.html">Query</a> class.</p>
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  <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">DataSetExtensions</span></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="GrapeCity.ActiveReports.Rdl.Model.html">GrapeCity.ActiveReports.Rdl.Model</a></h6>
  <h6><strong>Assembly</strong>: MESCIUS.ActiveReports.Core.Rdl.dll</h6>
  <h5 id="GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static class DataSetExtensions</code></pre>
  </div>
  <h3 id="fields">Fields
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  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_NestedDataSetPrefix" data-uid="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.NestedDataSetPrefix">
          <a class="xref" href="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.NestedDataSetPrefix.html">NestedDataSetPrefix</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_NestedDataSetSeparator" data-uid="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.NestedDataSetSeparator">
          <a class="xref" href="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.NestedDataSetSeparator.html">NestedDataSetSeparator</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
    </tbody>
  </table>
  <h3 id="methods">Methods
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_GetParentDataSetName_GrapeCity_ActiveReports_PageReportModel_IDataSet_" data-uid="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.GetParentDataSetName(GrapeCity.ActiveReports.PageReportModel.IDataSet)">
          <a class="xref" href="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.GetParentDataSetName.html#GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_GetParentDataSetName_GrapeCity_ActiveReports_PageReportModel_IDataSet_">GetParentDataSetName(IDataSet)</a>
        </td>
        <td class="markdown level1 summary"><p>Gets a name of the parent dataset.</p>
</td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_GetParentFieldName_GrapeCity_ActiveReports_PageReportModel_IDataSet_" data-uid="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.GetParentFieldName(GrapeCity.ActiveReports.PageReportModel.IDataSet)">
          <a class="xref" href="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.GetParentFieldName.html#GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_GetParentFieldName_GrapeCity_ActiveReports_PageReportModel_IDataSet_">GetParentFieldName(IDataSet)</a>
        </td>
        <td class="markdown level1 summary"><p>Gets a name of the field that is the data source of the specified dataset.</p>
</td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_GetRootDataSet_GrapeCity_ActiveReports_PageReportModel_IDataSet_System_Func_System_String_GrapeCity_ActiveReports_PageReportModel_IDataSet__" data-uid="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.GetRootDataSet(GrapeCity.ActiveReports.PageReportModel.IDataSet,System.Func{System.String,GrapeCity.ActiveReports.PageReportModel.IDataSet})">
          <a class="xref" href="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.GetRootDataSet.html#GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_GetRootDataSet_GrapeCity_ActiveReports_PageReportModel_IDataSet_System_Func_System_String_GrapeCity_ActiveReports_PageReportModel_IDataSet__">GetRootDataSet(IDataSet, Func&lt;string, IDataSet&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Gets a root dataset by traversing up the dataset hierarchy.</p>
</td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_IsNested_GrapeCity_ActiveReports_PageReportModel_IDataSet_" data-uid="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.IsNested(GrapeCity.ActiveReports.PageReportModel.IDataSet)">
          <a class="xref" href="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.IsNested.html#GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_IsNested_GrapeCity_ActiveReports_PageReportModel_IDataSet_">IsNested(IDataSet)</a>
        </td>
        <td class="markdown level1 summary"><pre><code>&lt;p&gt;Determines if the dataset is a nested dataset. A nested dataset is a dataset that references another dataset instead of a datasource.
</code></pre>
<p>A dataset reference consists of the prefix &quot;$dataset:&quot;, the name of the parent dataset, the path separator &quot;/&quot;,
and the name of the field from the parent dataset containing this dataset.</p>
</td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_SetParentDataSet_GrapeCity_ActiveReports_PageReportModel_IDataSet_System_String_System_String_" data-uid="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.SetParentDataSet(GrapeCity.ActiveReports.PageReportModel.IDataSet,System.String,System.String)">
          <a class="xref" href="GrapeCity.ActiveReports.Rdl.Model.DataSetExtensions.SetParentDataSet.html#GrapeCity_ActiveReports_Rdl_Model_DataSetExtensions_SetParentDataSet_GrapeCity_ActiveReports_PageReportModel_IDataSet_System_String_System_String_">SetParentDataSet(IDataSet, string, string)</a>
        </td>
        <td class="markdown level1 summary"><p>Sets the parent dataset and field names for the nested dataset.</p>
</td>
      </tr>
    </tbody>
  </table>

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