# GrapeCity.ActiveReports.Blazor.Designer.PreviewSettings.OpenViewer

## Content

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<h1 id="GrapeCity_ActiveReports_Blazor_Designer_PreviewSettings_OpenViewer_" data-uid="GrapeCity.ActiveReports.Blazor.Designer.PreviewSettings.OpenViewer*">OpenViewer Property
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<div class="markdown level0 conceptual"></div>



<a id="GrapeCity_ActiveReports_Blazor_Designer_PreviewSettings_OpenViewer_" data-uid="GrapeCity.ActiveReports.Blazor.Designer.PreviewSettings.OpenViewer*"></a>
<h4 id="GrapeCity_ActiveReports_Blazor_Designer_PreviewSettings_OpenViewer" data-uid="GrapeCity.ActiveReports.Blazor.Designer.PreviewSettings.OpenViewer">OpenViewer</h4>
<div class="markdown level1 summary"><p>Gets or sets a function to plug in a viewer component, which will be called when the preview is opened.</p>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">[JsonIgnore]
public Action&lt;ViewerSettings&gt; OpenViewer { get; set; }</code></pre>
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<h5 class="propertyValue">Property Value</h5>
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      <th>Type</th>
      <th>Description</th>
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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.action-1">Action</a>&lt;<a class="xref" href="GrapeCity.ActiveReports.Blazor.Designer.ViewerSettings.html">ViewerSettings</a>&gt;</td>
      <td><p>This function receives a <a class="xref" href="GrapeCity.ActiveReports.Blazor.Designer.ViewerSettings.html">ViewerSettings</a> object containing information about the viewer configuration.</p>
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