# C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1

## Content

<div class="doc-site-dotnet-api-container">



  <h1 id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1" class="text-break">MultiSelectListBoxBuilder&lt;T&gt; Class
</h1>
  <div class="markdown level0 summary"><p>Defines a builder to configurate <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.html">MultiSelectListBox&lt;T&gt;</a>.</p>
</div>
  <div class="markdown level0 conceptual"></div>
  <div class="inheritance">
    <h5>Inheritance</h5>
    <div class="level0"><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
    <div class="level1"><span class="xref">HideObjectMembers</span></div>
    <div class="level2"><a class="xref" href="C1.Web.Mvc.Fluent.BaseBuilder-2.html">BaseBuilder</a>&lt;<a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.html">MultiSelectListBox</a>&lt;T&gt;, <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.html">MultiSelectListBoxBuilder</a>&lt;T&gt;&gt;</div>
    <div class="level3"><a class="xref" href="C1.Web.Mvc.Fluent.ComponentBuilder-2.html">ComponentBuilder</a>&lt;<a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.html">MultiSelectListBox</a>&lt;T&gt;, <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.html">MultiSelectListBoxBuilder</a>&lt;T&gt;&gt;</div>
    <div class="level4"><a class="xref" href="C1.Web.Mvc.Fluent.ControlBuilder-2.html">ControlBuilder</a>&lt;<a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.html">MultiSelectListBox</a>&lt;T&gt;, <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.html">MultiSelectListBoxBuilder</a>&lt;T&gt;&gt;</div>
    <div class="level5"><a class="xref" href="C1.Web.Mvc.Fluent.ItemsBoundControlBuilder-3.html">ItemsBoundControlBuilder</a>&lt;T, <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.html">MultiSelectListBox</a>&lt;T&gt;, <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.html">MultiSelectListBoxBuilder</a>&lt;T&gt;&gt;</div>
    <div class="level6"><span class="xref">MultiSelectListBoxBuilder&lt;T&gt;</span></div>
  </div>
  <div class="implements">
    <h5>Implements</h5>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/microsoft.aspnetcore.html.ihtmlcontent">IHtmlContent</a></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.Web.Mvc.Fluent.html">C1.Web.Mvc.Fluent</a></h6>
  <h6><strong>Assembly</strong>: C1.AspNetCore.Mvc.dll</h6>
  <h5 id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public class MultiSelectListBoxBuilder&lt;T&gt; : ItemsBoundControlBuilder&lt;T, MultiSelectListBox&lt;T&gt;, MultiSelectListBoxBuilder&lt;T&gt;&gt;, IHtmlContent</code></pre>
  </div>
  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">Public Class MultiSelectListBoxBuilder(Of T)
    Inherits ItemsBoundControlBuilder(Of T, MultiSelectListBox(Of T), MultiSelectListBoxBuilder(Of T))
    Implements IHtmlContent</code></pre>
  </div>
  <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>
  <h3 id="constructors">Constructors
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1__ctor_C1_Web_Mvc_MultiSelectListBox__0__" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.#ctor(C1.Web.Mvc.MultiSelectListBox{`0})">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.-ctor.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1__ctor_C1_Web_Mvc_MultiSelectListBox__0__">MultiSelectListBoxBuilder(MultiSelectListBox&lt;T&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Creates one <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.html">MultiSelectListBoxBuilder&lt;T&gt;</a> instance to configurate <code class="paramref">component</code>.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="methods">Methods
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_CaseSensitiveSearch_System_Boolean_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.CaseSensitiveSearch(System.Boolean)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.CaseSensitiveSearch.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_CaseSensitiveSearch_System_Boolean_">CaseSensitiveSearch(bool)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.CaseSensitiveSearch.html#C1_Web_Mvc_MultiSelectListBox_1_CaseSensitiveSearch">CaseSensitiveSearch</a>.
Sets a value that determines whether searches performed while the user types should case-sensitive.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_CheckOnFilter_System_Boolean_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.CheckOnFilter(System.Boolean)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.CheckOnFilter.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_CheckOnFilter_System_Boolean_">CheckOnFilter(bool)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.CheckOnFilter.html#C1_Web_Mvc_MultiSelectListBox_1_CheckOnFilter">CheckOnFilter</a>.
Sets a value that determines whether the MultiSelectListBox in the drop-down should automatically select all the filtered items when the filter text changes.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_CheckedMemberPath_System_String_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.CheckedMemberPath(System.String)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.CheckedMemberPath.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_CheckedMemberPath_System_String_">CheckedMemberPath(string)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.CheckedMemberPath.html#C1_Web_Mvc_MultiSelectListBox_1_CheckedMemberPath">CheckedMemberPath</a>.
Sets the name of the property used to control checkboxes placed next to each item.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_Delay_System_Int32_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.Delay(System.Int32)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.Delay.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_Delay_System_Int32_">Delay(int)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.Delay.html#C1_Web_Mvc_MultiSelectListBox_1_Delay">Delay</a>.
Sets the delay, in milliseconds, between when a keystroke occurs and when the search is performed to update the filter.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_DisplayMemberPath_System_String_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.DisplayMemberPath(System.String)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.DisplayMemberPath.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_DisplayMemberPath_System_String_">DisplayMemberPath(string)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.DisplayMemberPath.html#C1_Web_Mvc_MultiSelectListBox_1_DisplayMemberPath">DisplayMemberPath</a>.
Sets the name of the property to use as the visual representation of the items.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_FilterInputPlaceholder_System_String_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.FilterInputPlaceholder(System.String)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.FilterInputPlaceholder.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_FilterInputPlaceholder_System_String_">FilterInputPlaceholder(string)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.FilterInputPlaceholder.html#C1_Web_Mvc_MultiSelectListBox_1_FilterInputPlaceholder">FilterInputPlaceholder</a>.
Sets the string used as a placeholder for the filter input element.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_IsContentHtml_System_Boolean_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.IsContentHtml(System.Boolean)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.IsContentHtml.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_IsContentHtml_System_Boolean_">IsContentHtml(bool)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.IsContentHtml.html#C1_Web_Mvc_MultiSelectListBox_1_IsContentHtml">IsContentHtml</a>.
Sets a value indicating whether the list displays items as plain text or as HTML.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_OnClientCheckedItemsChanged_System_String_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.OnClientCheckedItemsChanged(System.String)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.OnClientCheckedItemsChanged.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_OnClientCheckedItemsChanged_System_String_">OnClientCheckedItemsChanged(string)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates the <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.OnClientCheckedItemsChanged.html#C1_Web_Mvc_MultiSelectListBox_1_OnClientCheckedItemsChanged">OnClientCheckedItemsChanged</a> client event.
Occurs when the value of the @see:checkedItems property changes.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_SelectAllLabel_System_String_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.SelectAllLabel(System.String)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.SelectAllLabel.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_SelectAllLabel_System_String_">SelectAllLabel(string)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.SelectAllLabel.html#C1_Web_Mvc_MultiSelectListBox_1_SelectAllLabel">SelectAllLabel</a>.
Sets the string to be used as a label for the &quot;Select All&quot; checkbox that is displayed when the ShowSelectAllCheckbox property is set to true.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_SelectedIndex_System_Int32_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.SelectedIndex(System.Int32)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.SelectedIndex.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_SelectedIndex_System_Int32_">SelectedIndex(int)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.SelectedIndex.html#C1_Web_Mvc_MultiSelectListBox_1_SelectedIndex">SelectedIndex</a>.
Sets the index of the currently selected item.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_ShowFilterInput_System_Boolean_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.ShowFilterInput(System.Boolean)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.ShowFilterInput.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_ShowFilterInput_System_Boolean_">ShowFilterInput(bool)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.ShowFilterInput.html#C1_Web_Mvc_MultiSelectListBox_1_ShowFilterInput">ShowFilterInput</a>.
Sets whether the control should display a &quot;filter&quot; input above the items to filter the items displayed.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_ShowGroups_System_Boolean_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.ShowGroups(System.Boolean)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.ShowGroups.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_ShowGroups_System_Boolean_">ShowGroups(bool)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.ShowGroups.html#C1_Web_Mvc_MultiSelectListBox_1_ShowGroups">ShowGroups</a>.
Sets a value that determines whether the drop-down should include group header items to delimit data groups.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_ShowSelectAllCheckbox_System_Boolean_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.ShowSelectAllCheckbox(System.Boolean)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.ShowSelectAllCheckbox.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_ShowSelectAllCheckbox_System_Boolean_">ShowSelectAllCheckbox(bool)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.ShowSelectAllCheckbox.html#C1_Web_Mvc_MultiSelectListBox_1_ShowSelectAllCheckbox">ShowSelectAllCheckbox</a>.
Sets whether the control should display a &quot;Select All&quot; checkbox above the items to select or de-select all items.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_VirtualizationThreshold_System_Int32_" data-uid="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder`1.VirtualizationThreshold(System.Int32)">
          <a class="xref" href="C1.Web.Mvc.Fluent.MultiSelectListBoxBuilder-1.VirtualizationThreshold.html#C1_Web_Mvc_Fluent_MultiSelectListBoxBuilder_1_VirtualizationThreshold_System_Int32_">VirtualizationThreshold(int)</a>
        </td>
        <td class="markdown level1 summary"><p>Configurates <a class="xref" href="C1.Web.Mvc.MultiSelectListBox-1.VirtualizationThreshold.html#C1_Web_Mvc_MultiSelectListBox_1_VirtualizationThreshold">VirtualizationThreshold</a>.
Sets the minimum number of rows and/or columns required to enable virtualization in the MultiSelectListBox.</p>
</td>
      </tr>
    </tbody>
  </table>

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