# C1.Document.C1TextSearchManager.FindPreviousAsyncEx

## Content

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<h1 id="C1_Document_C1TextSearchManager_FindPreviousAsyncEx_" data-uid="C1.Document.C1TextSearchManager.FindPreviousAsyncEx*">FindPreviousAsyncEx Method
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<a id="C1_Document_C1TextSearchManager_FindPreviousAsyncEx_" data-uid="C1.Document.C1TextSearchManager.FindPreviousAsyncEx*"></a>
<h4 id="C1_Document_C1TextSearchManager_FindPreviousAsyncEx_C1_Document_C1FoundPosition_System_Boolean_" data-uid="C1.Document.C1TextSearchManager.FindPreviousAsyncEx(C1.Document.C1FoundPosition,System.Boolean)">FindPreviousAsyncEx(C1FoundPosition, bool)</h4>
<div class="markdown level1 summary"><p>Non-blocking (asynchronous) version of the <a class="xref" href="C1.Document.C1TextSearchManager.FindPrevious.html#C1_Document_C1TextSearchManager_FindPrevious_C1_Document_C1FoundPosition_">FindPrevious(C1FoundPosition)</a> method.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public IAsyncOperationWithProgress&lt;C1FoundPosition, double&gt; FindPreviousAsyncEx(C1FoundPosition initialPosition, bool throwException)</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Function FindPreviousAsyncEx(initialPosition As C1FoundPosition, throwException As Boolean) As IAsyncOperationWithProgress(Of C1FoundPosition, Double)</code></pre>
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<h5 class="parameters">Parameters</h5>
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      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
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      <td><a class="xref" href="C1.Document.C1FoundPosition.html">C1FoundPosition</a></td>
      <td><span class="parametername">initialPosition</span></td>
      <td><p><a class="xref" href="C1.Document.C1FoundPosition.html">C1FoundPosition</a> object defines the position from which the search should be started.</p>
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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.boolean">bool</a></td>
      <td><span class="parametername">throwException</span></td>
      <td><p>Whether to throw an exception if a document access error occurred while searching.</p>
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<h5 class="returns">Returns</h5>
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      <th>Type</th>
      <th>Description</th>
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      <td><a class="xref" href="C1.Document.IAsyncOperationWithProgress-2.html">IAsyncOperationWithProgress</a>&lt;<a class="xref" href="C1.Document.C1FoundPosition.html">C1FoundPosition</a>, <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>&gt;</td>
      <td><p>The <a class="xref" href="C1.Document.IAsyncOperationWithProgress-2.html">IAsyncOperationWithProgress&lt;TResult, TProgress&gt;</a> interface that can be used to manage asynchronous operation.</p>
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