# GrapeCity.ActiveReports.PageReportModel.Visibility.Validate

## Content

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<h1 id="GrapeCity_ActiveReports_PageReportModel_Visibility_Validate_" data-uid="GrapeCity.ActiveReports.PageReportModel.Visibility.Validate*">Validate Method
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<div class="markdown level0 conceptual"></div>



<a id="GrapeCity_ActiveReports_PageReportModel_Visibility_Validate_" data-uid="GrapeCity.ActiveReports.PageReportModel.Visibility.Validate*"></a>
<h4 id="GrapeCity_ActiveReports_PageReportModel_Visibility_Validate_GrapeCity_ActiveReports_PageReportModel_ValidationContext_" data-uid="GrapeCity.ActiveReports.PageReportModel.Visibility.Validate(GrapeCity.ActiveReports.PageReportModel.ValidationContext)">Validate(ValidationContext)</h4>
<div class="markdown level1 summary"><p>Validates the current state of the <a class="xref" href="GrapeCity.ActiveReports.PageReportModel.Visibility.html">Visibility</a> object.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public ValidationEntry[] Validate(ValidationContext context)</code></pre>
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<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
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      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
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    <tr>
      <td><a class="xref" href="GrapeCity.ActiveReports.PageReportModel.ValidationContext.html">ValidationContext</a></td>
      <td><span class="parametername">context</span></td>
      <td><p>A <a class="xref" href="GrapeCity.ActiveReports.PageReportModel.ValidationContext.html">ValidationContext</a> object representing the context details during validation.</p>
</td>
    </tr>
  </tbody>
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<h5 class="returns">Returns</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
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      <td><a class="xref" href="GrapeCity.ActiveReports.PageReportModel.ValidationEntry.html">ValidationEntry</a>[]</td>
      <td><p>An array of <a class="xref" href="GrapeCity.ActiveReports.PageReportModel.ValidationEntry.html">ValidationEntry</a> objects representing the information about the validation warnings or failures.</p>
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    </tr>
  </tbody>
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<h5 class="implements">Implements</h5>
    <div><a class="xref" href="GrapeCity.ActiveReports.PageReportModel.IValidateable.Validate.html#GrapeCity_ActiveReports_PageReportModel_IValidateable_Validate_GrapeCity_ActiveReports_PageReportModel_ValidationContext_">IValidateable.Validate(ValidationContext)</a></div>
<h5 id="GrapeCity_ActiveReports_PageReportModel_Visibility_Validate_GrapeCity_ActiveReports_PageReportModel_ValidationContext__remarks">Remarks</h5>
<div class="markdown level1 remarks"><pre><code>&lt;p&gt;Clicking an instance of the ToggleItem toggles the hidden state of every corresponding instance of the item. 
</code></pre>
<p>If the ToggleItem becomes hidden, this item becomes hidden. This cascading does not apply if the ToggleItem becomes hidden as a result
of a containing table column or matrix cell becoming hidden.</p>
<p>The ToggleItem must be a textbox in the same grouping scope as this item or in any containing grouping scope.</p>
<p>If a value for the ToggleItem is omitted, no item toggles the hidden state of this item.</p>
<p>ToggleItems are not allowed on and cannot refer to report items contained in a page header or footer.</p>
<p>ToggleItems cannot refer to a report item contained within the current report item unless the current grouping scope has a parent.</p>
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<h5 class="exceptions">Exceptions</h5>
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      <th>Type</th>
      <th>Condition</th>
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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.argumentnullexception">ArgumentNullException</a></td>
      <td><p>Throws if <code class="paramref">context</code> is <code>null</code>.</p>
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  </tbody>
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