# C1.Report.Group.GroupBy

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<h1 id="C1_Report_Group_GroupBy_" data-uid="C1.Report.Group.GroupBy*">GroupBy Property
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<a id="C1_Report_Group_GroupBy_" data-uid="C1.Report.Group.GroupBy*"></a>
<h4 id="C1_Report_Group_GroupBy" data-uid="C1.Report.Group.GroupBy">GroupBy</h4>
<div class="markdown level1 summary"><p>Gets or sets the expression used to break records into groups.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">[C1Description(&quot;Group.GroupBy&quot;, &quot;Expression used to break records into groups. Evaluated for every record, whenever the value changes a new group is started.&quot;)]
public string GroupBy { get; set; }</code></pre>
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  <pre><code class="lang-vbnet hljs">&lt;C1Description(&quot;Group.GroupBy&quot;, &quot;Expression used to break records into groups. Evaluated for every record, whenever the value changes a new group is started.&quot;)&gt;
Public Property GroupBy As String</code></pre>
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<h5 id="C1_Report_Group_GroupBy_remarks">Remarks</h5>
<div class="markdown level1 remarks"><p>This property contains a <b>VBScript</b> expression that is evaluated for every record
in the source recordset. A new group is started whenever the value of this expression changes.</p>
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