# C1.DataCollection.IDataCollectionEx.CreateFilterFromString

## Content

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<h1 id="C1_DataCollection_IDataCollectionEx_CreateFilterFromString_" data-uid="C1.DataCollection.IDataCollectionEx.CreateFilterFromString*">CreateFilterFromString Method
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<div class="markdown level0 conceptual"></div>



<a id="C1_DataCollection_IDataCollectionEx_CreateFilterFromString_" data-uid="C1.DataCollection.IDataCollectionEx.CreateFilterFromString*"></a>
<h4 id="C1_DataCollection_IDataCollectionEx_CreateFilterFromString__1_C1_DataCollection_IDataCollection___0__System_String_System_Boolean_System_Boolean_System_Boolean_System_Boolean_" data-uid="C1.DataCollection.IDataCollectionEx.CreateFilterFromString``1(C1.DataCollection.IDataCollection{``0},System.String,System.Boolean,System.Boolean,System.Boolean,System.Boolean)">CreateFilterFromString&lt;T&gt;(IDataCollection&lt;T&gt;, string, bool, bool, bool, bool)</h4>
<div class="markdown level1 summary"><p>Creates a <a class="xref" href="C1.DataCollection.FilterExpression.html">FilterExpression</a> from a query string.</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">public static FilterExpression? CreateFilterFromString&lt;T&gt;(this IDataCollection&lt;T&gt; dataCollection, string query, bool treatSpacesAsAndOperator = true, bool matchNumbers = true, bool matchCase = false, bool matchWholeWord = false) where T : class?</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Shared Function CreateFilterFromString(Of T As Class)(dataCollection As IDataCollection(Of T), query As String, Optional treatSpacesAsAndOperator As Boolean = True, Optional matchNumbers As Boolean = True, Optional matchCase As Boolean = False, Optional matchWholeWord As Boolean = False) As FilterExpression</code></pre>
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<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="C1.DataCollection.IDataCollection-1.html">IDataCollection</a>&lt;T&gt;</td>
      <td><span class="parametername">dataCollection</span></td>
      <td><p>The data collection.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></td>
      <td><span class="parametername">query</span></td>
      <td><p>The query string to be filtered.</p>
</td>
    </tr>
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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.boolean">bool</a></td>
      <td><span class="parametername">treatSpacesAsAndOperator</span></td>
      <td><p>if set to <code>true</code> treat spaces as and operator.</p>
</td>
    </tr>
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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.boolean">bool</a></td>
      <td><span class="parametername">matchNumbers</span></td>
      <td><p>if set to <code>true</code> it will look into numeric fields.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.boolean">bool</a></td>
      <td><span class="parametername">matchCase</span></td>
      <td><p>If set to <code>true</code> the case will be taken into account.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.boolean">bool</a></td>
      <td><span class="parametername">matchWholeWord</span></td>
      <td><p>If set to <code>true</code> the whole word will have to be matched.</p>
</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>
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    <tr>
      <td><a class="xref" href="C1.DataCollection.FilterExpression.html">FilterExpression</a></td>
      <td></td>
    </tr>
  </tbody>
</table>
<h5 class="typeParameters">Type Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><span class="parametername">T</span></td>
      <td></td>
    </tr>
  </tbody>
</table>
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