# C1.Win.Input.MultiColumnCombo.DisplayColumn.AllowNull

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<h1 id="C1_Win_Input_MultiColumnCombo_DisplayColumn_AllowNull_" data-uid="C1.Win.Input.MultiColumnCombo.DisplayColumn.AllowNull*">AllowNull Property
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<a id="C1_Win_Input_MultiColumnCombo_DisplayColumn_AllowNull_" data-uid="C1.Win.Input.MultiColumnCombo.DisplayColumn.AllowNull*"></a>
<h4 id="C1_Win_Input_MultiColumnCombo_DisplayColumn_AllowNull" data-uid="C1.Win.Input.MultiColumnCombo.DisplayColumn.AllowNull">AllowNull</h4>
<div class="markdown level1 summary"><p>Gets or sets a value that indicates whether that cells in the <a class="xref" href="C1.Win.Input.MultiColumnCombo.DisplayColumn.html">DisplayColumn</a> will accept null value or null will be replaced by default value in unbound mode.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public bool AllowNull { get; set; }</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Property AllowNull As Boolean</code></pre>
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