# C1.Web.Mvc.MultiSelect-1.HeaderFormatter

## Content

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<h1 id="C1_Web_Mvc_MultiSelect_1_HeaderFormatter_" data-uid="C1.Web.Mvc.MultiSelect`1.HeaderFormatter*">HeaderFormatter Property
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<a id="C1_Web_Mvc_MultiSelect_1_HeaderFormatter_" data-uid="C1.Web.Mvc.MultiSelect`1.HeaderFormatter*"></a>
<h4 id="C1_Web_Mvc_MultiSelect_1_HeaderFormatter" data-uid="C1.Web.Mvc.MultiSelect`1.HeaderFormatter">HeaderFormatter</h4>
<div class="markdown level1 summary"><p>Gets or sets a function that gets the HTML in the control header.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">[JsonConverter(typeof(FunctionConverter))]
public string HeaderFormatter { get; set; }</code></pre>
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  <pre><code class="lang-vbnet hljs">&lt;JsonConverter(GetType(FunctionConverter))&gt;
Public Property HeaderFormatter As String</code></pre>
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<h5 id="C1_Web_Mvc_MultiSelect_1_HeaderFormatter_remarks">Remarks</h5>
<div class="markdown level1 remarks"><p>By default, the control header content is determined based on the Placeholder, MaxHeaderItems, and on the current selection. You may customize the header content by specifying a function that returns a custom string based on whatever criteria your application requires.</p>
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