# C1.Win.C1Input.C1TextBox.PreValidation

## Content

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<h1 id="C1_Win_C1Input_C1TextBox_PreValidation_" data-uid="C1.Win.C1Input.C1TextBox.PreValidation*">PreValidation Property
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<a id="C1_Win_C1Input_C1TextBox_PreValidation_" data-uid="C1.Win.C1Input.C1TextBox.PreValidation*"></a>
<h4 id="C1_Win_C1Input_C1TextBox_PreValidation" data-uid="C1.Win.C1Input.C1TextBox.PreValidation">PreValidation</h4>
<div class="markdown level1 summary"><p>Validation rules applied before parsing, that is, before converting the string entered by the user to the DataType (raw string validation).</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public PreValidation PreValidation { get; }</code></pre>
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  <pre><code class="lang-vbnet hljs">Public ReadOnly Property PreValidation As PreValidation</code></pre>
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