# C1.Win.List.ListBase.C1ListBase.DefColWidth

## Content

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<h1 id="C1_Win_List_ListBase_C1ListBase_DefColWidth_" data-uid="C1.Win.List.ListBase.C1ListBase.DefColWidth*">DefColWidth Property
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<a id="C1_Win_List_ListBase_C1ListBase_DefColWidth_" data-uid="C1.Win.List.ListBase.C1ListBase.DefColWidth*"></a>
<h4 id="C1_Win_List_ListBase_C1ListBase_DefColWidth" data-uid="C1.Win.List.ListBase.C1ListBase.DefColWidth">DefColWidth</h4>
<div class="markdown level1 summary"><p>Specifies column width for auto-created columns.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">[Layout]
public int DefColWidth { get; set; }</code></pre>
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  <pre><code class="lang-vbnet hljs">&lt;Layout&gt;
Public Property DefColWidth As Integer</code></pre>
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<h5 id="C1_Win_List_ListBase_C1ListBase_DefColWidth_remarks">Remarks</h5>
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Setting the DefColWidth property at run time does not affect existing columns, only those that are subsequently created in code. 
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In bound mode, some data sources do not provide text field widths when requested by the list. Therefore, if DefColWidth is 0, the actual column widths may not be what you expect since the list must supply a default width.
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