# GrapeCity.ActiveReports.Extensibility.Layout.LayoutNotificationCallback

## Content

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  <h1 id="GrapeCity_ActiveReports_Extensibility_Layout_LayoutNotificationCallback" data-uid="GrapeCity.ActiveReports.Extensibility.Layout.LayoutNotificationCallback" class="text-break">LayoutNotificationCallback Delegate
</h1>
  <div class="markdown level0 summary"><p>Specifies notification callback for layout operation.</p>
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  <div class="markdown level0 conceptual"></div>
  <h6><strong>Namespace</strong>: <a class="xref" href="GrapeCity.ActiveReports.Extensibility.Layout.html">GrapeCity.ActiveReports.Extensibility.Layout</a></h6>
  <h6><strong>Assembly</strong>: MESCIUS.ActiveReports.Core.Rendering.dll</h6>
  <h5 id="GrapeCity_ActiveReports_Extensibility_Layout_LayoutNotificationCallback_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public delegate bool LayoutNotificationCallback(LayoutState state)</code></pre>
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  <h5 class="parameters">Parameters</h5>
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    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
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    </thead>
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      <tr>
        <td><a class="xref" href="GrapeCity.ActiveReports.Extensibility.Layout.LayoutState.html">LayoutState</a></td>
        <td><span class="parametername">state</span></td>
        <td>Specifies notification callback for layout operation.</td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.boolean">bool</a></td>
        <td><p>true to continue layout or false to cancel layout</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="constructors">Constructors
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  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
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    </thead>
    <tbody>
      <tr>
        <td id="GrapeCity_ActiveReports_Extensibility_Layout_LayoutNotificationCallback__ctor_System_Object_System_IntPtr_" data-uid="GrapeCity.ActiveReports.Extensibility.Layout.LayoutNotificationCallback.#ctor(System.Object,System.IntPtr)">
          <a class="xref" href="GrapeCity.ActiveReports.Extensibility.Layout.LayoutNotificationCallback.-ctor.html#GrapeCity_ActiveReports_Extensibility_Layout_LayoutNotificationCallback__ctor_System_Object_System_IntPtr_">LayoutNotificationCallback(object, IntPtr)</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
    </tbody>
  </table>
  <h3 id="methods">Methods
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  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
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    </thead>
    <tbody>
      <tr>
        <td id="GrapeCity_ActiveReports_Extensibility_Layout_LayoutNotificationCallback_BeginInvoke_GrapeCity_ActiveReports_Extensibility_Layout_LayoutState_System_AsyncCallback_System_Object_" data-uid="GrapeCity.ActiveReports.Extensibility.Layout.LayoutNotificationCallback.BeginInvoke(GrapeCity.ActiveReports.Extensibility.Layout.LayoutState,System.AsyncCallback,System.Object)">
          <a class="xref" href="GrapeCity.ActiveReports.Extensibility.Layout.LayoutNotificationCallback.BeginInvoke.html#GrapeCity_ActiveReports_Extensibility_Layout_LayoutNotificationCallback_BeginInvoke_GrapeCity_ActiveReports_Extensibility_Layout_LayoutState_System_AsyncCallback_System_Object_">BeginInvoke(LayoutState, AsyncCallback, object)</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Extensibility_Layout_LayoutNotificationCallback_EndInvoke_System_IAsyncResult_" data-uid="GrapeCity.ActiveReports.Extensibility.Layout.LayoutNotificationCallback.EndInvoke(System.IAsyncResult)">
          <a class="xref" href="GrapeCity.ActiveReports.Extensibility.Layout.LayoutNotificationCallback.EndInvoke.html#GrapeCity_ActiveReports_Extensibility_Layout_LayoutNotificationCallback_EndInvoke_System_IAsyncResult_">EndInvoke(IAsyncResult)</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Extensibility_Layout_LayoutNotificationCallback_Invoke_GrapeCity_ActiveReports_Extensibility_Layout_LayoutState_" data-uid="GrapeCity.ActiveReports.Extensibility.Layout.LayoutNotificationCallback.Invoke(GrapeCity.ActiveReports.Extensibility.Layout.LayoutState)">
          <a class="xref" href="GrapeCity.ActiveReports.Extensibility.Layout.LayoutNotificationCallback.Invoke.html#GrapeCity_ActiveReports_Extensibility_Layout_LayoutNotificationCallback_Invoke_GrapeCity_ActiveReports_Extensibility_Layout_LayoutState_">Invoke(LayoutState)</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
    </tbody>
  </table>
  <h3 id="extensionmethods">Extension Methods</h3>
  <div>
      <a class="xref" href="GrapeCity.ActiveReports.Core.Rendering.Tools.ObjectExtensions.IsNumber.html#GrapeCity_ActiveReports_Core_Rendering_Tools_ObjectExtensions_IsNumber_System_Object_">ObjectExtensions.IsNumber(object)</a>
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