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<article class="content wrap" id="_content" data-uid="Lucene.Net.Search.Grouping.SearchGroup">
<h1 id="Lucene_Net_Search_Grouping_SearchGroup" data-uid="Lucene.Net.Search.Grouping.SearchGroup" class="text-break">Class SearchGroup
</h1>
<div class="markdown level0 summary"><p>LUCENENET specific class used to nest types to mimic the syntax used
by Lucene (that is, without specifying the generic closing type of <a class="xref" href="Lucene.Net.Search.Grouping.SearchGroup-1.html">SearchGroup&lt;TGroupValue&gt;</a>)</p>
</div>
<div class="markdown level0 conceptual"></div>
<div class="inheritance">
<h5>Inheritance</h5>
<div class="level0"><span class="xref">System.Object</span></div>
<div class="level1"><span class="xref">SearchGroup</span></div>
</div>
<div class="inheritedMembers">
<h5>Inherited Members</h5>
<div>
<span class="xref">System.Object.Equals(System.Object)</span>
</div>
<div>
<span class="xref">System.Object.Equals(System.Object, System.Object)</span>
</div>
<div>
<span class="xref">System.Object.GetHashCode()</span>
</div>
<div>
<span class="xref">System.Object.GetType()</span>
</div>
<div>
<span class="xref">System.Object.MemberwiseClone()</span>
</div>
<div>
<span class="xref">System.Object.ReferenceEquals(System.Object, System.Object)</span>
</div>
<div>
<span class="xref">System.Object.ToString()</span>
</div>
</div>
<h6><strong>Namespace</strong>: <a class="xref" href="Lucene.Net.Search.Grouping.html">Lucene.Net.Search.Grouping</a></h6>
<h6><strong>Assembly</strong>: Lucene.Net.Grouping.dll</h6>
<h5 id="Lucene_Net_Search_Grouping_SearchGroup_syntax">Syntax</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public class SearchGroup</code></pre>
</div>
<h3 id="methods">Methods
</h3>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Search_Grouping_SearchGroup_Merge__1_System_Collections_Generic_IList_System_Collections_Generic_IEnumerable_Lucene_Net_Search_Grouping_ISearchGroup___0____System_Int32_System_Int32_Lucene_Net_Search_Sort_.md&amp;value=---%0Auid%3A%20Lucene.Net.Search.Grouping.SearchGroup.Merge%60%601(System.Collections.Generic.IList%7BSystem.Collections.Generic.IEnumerable%7BLucene.Net.Search.Grouping.ISearchGroup%7B%60%600%7D%7D%7D%2CSystem.Int32%2CSystem.Int32%2CLucene.Net.Search.Sort)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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<a href="https://github.com/NightOwl888/lucenenet/blob/release/Lucene.Net_4_8_0_beta00010/src/Lucene.Net.Grouping/SearchGroup.cs/#L471">View Source</a>
</span>
<a id="Lucene_Net_Search_Grouping_SearchGroup_Merge_" data-uid="Lucene.Net.Search.Grouping.SearchGroup.Merge*"></a>
<h4 id="Lucene_Net_Search_Grouping_SearchGroup_Merge__1_System_Collections_Generic_IList_System_Collections_Generic_IEnumerable_Lucene_Net_Search_Grouping_ISearchGroup___0____System_Int32_System_Int32_Lucene_Net_Search_Sort_" data-uid="Lucene.Net.Search.Grouping.SearchGroup.Merge``1(System.Collections.Generic.IList{System.Collections.Generic.IEnumerable{Lucene.Net.Search.Grouping.ISearchGroup{``0}}},System.Int32,System.Int32,Lucene.Net.Search.Sort)">Merge&lt;T&gt;(IList&lt;IEnumerable&lt;ISearchGroup&lt;T&gt;&gt;&gt;, Int32, Int32, Sort)</h4>
<div class="markdown level1 summary"><p>Merges multiple collections of top groups, for example
obtained from separate index shards. The provided
groupSort must match how the groups were sorted, and
the provided SearchGroups must have been computed
with <code>fillFields=true</code> passed to
<a class="xref" href="Lucene.Net.Search.Grouping.AbstractFirstPassGroupingCollector-1.html#Lucene_Net_Search_Grouping_AbstractFirstPassGroupingCollector_1_GetTopGroups_System_Int32_System_Boolean_">GetTopGroups(Int32, Boolean)</a>.
<p>
NOTE: this returns null if the topGroups is empty.
</p></p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static ICollection&lt;SearchGroup&lt;T&gt;&gt; Merge&lt;T&gt;(IList&lt;IEnumerable&lt;ISearchGroup&lt;T&gt;&gt;&gt; topGroups, int offset, int topN, Sort groupSort)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><span class="xref">System.Collections.Generic.IList</span>&lt;<span class="xref">System.Collections.Generic.IEnumerable</span>&lt;<a class="xref" href="Lucene.Net.Search.Grouping.ISearchGroup-1.html">ISearchGroup</a>&lt;T&gt;&gt;&gt;</td>
<td><span class="parametername">topGroups</span></td>
<td></td>
</tr>
<tr>
<td><span class="xref">System.Int32</span></td>
<td><span class="parametername">offset</span></td>
<td></td>
</tr>
<tr>
<td><span class="xref">System.Int32</span></td>
<td><span class="parametername">topN</span></td>
<td></td>
</tr>
<tr>
<td><span class="xref">Lucene.Net.Search.Sort</span></td>
<td><span class="parametername">groupSort</span></td>
<td></td>
</tr>
</tbody>
</table>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><span class="xref">System.Collections.Generic.ICollection</span>&lt;<a class="xref" href="Lucene.Net.Search.Grouping.SearchGroup-1.html">SearchGroup</a>&lt;T&gt;&gt;</td>
<td></td>
</tr>
</tbody>
</table>
<h5 class="typeParameters">Type Parameters</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><span class="parametername">T</span></td>
<td></td>
</tr>
</tbody>
</table>
</article>
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