# C1.Win.Accessibility.Items.ProviderExt

## Content

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  <h1 id="C1_Win_Accessibility_Items_ProviderExt" data-uid="C1.Win.Accessibility.Items.ProviderExt" class="text-break">ProviderExt Class
</h1>
  <div class="markdown level0 summary"><p>Represents extensions of UIA providers with standard behavior.</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">ProviderExt</span></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.Win.Accessibility.Items.html">C1.Win.Accessibility.Items</a></h6>
  <h6><strong>Assembly</strong>: C1.Win.10.dll</h6>
  <h5 id="C1_Win_Accessibility_Items_ProviderExt_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static class ProviderExt</code></pre>
  </div>
  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">Public Module ProviderExt</code></pre>
  </div>
  <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_Win_Accessibility_Items_ProviderExt_AddToSelectionExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaSelectionItemProvider_C1_Win_Accessibility_UiaItem_" data-uid="C1.Win.Accessibility.Items.ProviderExt.AddToSelectionExt(C1.Win.Accessibility.Items.BaseInterfaces.IUiaSelectionItemProvider,C1.Win.Accessibility.UiaItem)">
          <a class="xref" href="C1.Win.Accessibility.Items.ProviderExt.AddToSelectionExt.html#C1_Win_Accessibility_Items_ProviderExt_AddToSelectionExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaSelectionItemProvider_C1_Win_Accessibility_UiaItem_">AddToSelectionExt(IUiaSelectionItemProvider, UiaItem)</a>
        </td>
        <td class="markdown level1 summary"><p>Adds current element to selection and raises <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.automation.selectionitempattern.elementremovedfromselectionevent">ElementRemovedFromSelectionEvent</a>.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Accessibility_Items_ProviderExt_CollapseExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaExpandCollapseProvider_C1_Win_Accessibility_UiaItem_" data-uid="C1.Win.Accessibility.Items.ProviderExt.CollapseExt(C1.Win.Accessibility.Items.BaseInterfaces.IUiaExpandCollapseProvider,C1.Win.Accessibility.UiaItem)">
          <a class="xref" href="C1.Win.Accessibility.Items.ProviderExt.CollapseExt.html#C1_Win_Accessibility_Items_ProviderExt_CollapseExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaExpandCollapseProvider_C1_Win_Accessibility_UiaItem_">CollapseExt(IUiaExpandCollapseProvider, UiaItem)</a>
        </td>
        <td class="markdown level1 summary"><p>Adds current element to selection and raises <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.automation.provider.iexpandcollapseprovider.expandcollapsestate">ExpandCollapseState</a>.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Accessibility_Items_ProviderExt_ExpandExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaExpandCollapseProvider_C1_Win_Accessibility_UiaItem_" data-uid="C1.Win.Accessibility.Items.ProviderExt.ExpandExt(C1.Win.Accessibility.Items.BaseInterfaces.IUiaExpandCollapseProvider,C1.Win.Accessibility.UiaItem)">
          <a class="xref" href="C1.Win.Accessibility.Items.ProviderExt.ExpandExt.html#C1_Win_Accessibility_Items_ProviderExt_ExpandExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaExpandCollapseProvider_C1_Win_Accessibility_UiaItem_">ExpandExt(IUiaExpandCollapseProvider, UiaItem)</a>
        </td>
        <td class="markdown level1 summary"><p>Requests to change <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.automation.togglestate">ToggleState</a> of the element to selection and raises <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.automation.provider.iexpandcollapseprovider.expandcollapsestate">ExpandCollapseState</a> property change event.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Accessibility_Items_ProviderExt_InvokeExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaInvokeProvider_C1_Win_Accessibility_UiaItem_" data-uid="C1.Win.Accessibility.Items.ProviderExt.InvokeExt(C1.Win.Accessibility.Items.BaseInterfaces.IUiaInvokeProvider,C1.Win.Accessibility.UiaItem)">
          <a class="xref" href="C1.Win.Accessibility.Items.ProviderExt.InvokeExt.html#C1_Win_Accessibility_Items_ProviderExt_InvokeExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaInvokeProvider_C1_Win_Accessibility_UiaItem_">InvokeExt(IUiaInvokeProvider, UiaItem)</a>
        </td>
        <td class="markdown level1 summary"><p>Requests current element to initiate its action and raises <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.automation.invokepatternidentifiers.invokedevent">InvokedEvent</a>.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Accessibility_Items_ProviderExt_RemoveFromSelectionExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaSelectionItemProvider_C1_Win_Accessibility_UiaItem_" data-uid="C1.Win.Accessibility.Items.ProviderExt.RemoveFromSelectionExt(C1.Win.Accessibility.Items.BaseInterfaces.IUiaSelectionItemProvider,C1.Win.Accessibility.UiaItem)">
          <a class="xref" href="C1.Win.Accessibility.Items.ProviderExt.RemoveFromSelectionExt.html#C1_Win_Accessibility_Items_ProviderExt_RemoveFromSelectionExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaSelectionItemProvider_C1_Win_Accessibility_UiaItem_">RemoveFromSelectionExt(IUiaSelectionItemProvider, UiaItem)</a>
        </td>
        <td class="markdown level1 summary"><p>Removes current element from selection and raises <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.automation.selectionitempattern.elementremovedfromselectionevent">ElementRemovedFromSelectionEvent</a>.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Accessibility_Items_ProviderExt_SelectExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaSelectionItemProvider_C1_Win_Accessibility_UiaItem_" data-uid="C1.Win.Accessibility.Items.ProviderExt.SelectExt(C1.Win.Accessibility.Items.BaseInterfaces.IUiaSelectionItemProvider,C1.Win.Accessibility.UiaItem)">
          <a class="xref" href="C1.Win.Accessibility.Items.ProviderExt.SelectExt.html#C1_Win_Accessibility_Items_ProviderExt_SelectExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaSelectionItemProvider_C1_Win_Accessibility_UiaItem_">SelectExt(IUiaSelectionItemProvider, UiaItem)</a>
        </td>
        <td class="markdown level1 summary"><p>Sets the current element as the selection and raises <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.automation.selectionitempattern.elementselectedevent">ElementSelectedEvent</a>.</p>
</td>
      </tr>
      <tr>
        <td id="C1_Win_Accessibility_Items_ProviderExt_ToggleExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaToggleProvider_C1_Win_Accessibility_UiaItem_" data-uid="C1.Win.Accessibility.Items.ProviderExt.ToggleExt(C1.Win.Accessibility.Items.BaseInterfaces.IUiaToggleProvider,C1.Win.Accessibility.UiaItem)">
          <a class="xref" href="C1.Win.Accessibility.Items.ProviderExt.ToggleExt.html#C1_Win_Accessibility_Items_ProviderExt_ToggleExt_C1_Win_Accessibility_Items_BaseInterfaces_IUiaToggleProvider_C1_Win_Accessibility_UiaItem_">ToggleExt(IUiaToggleProvider, UiaItem)</a>
        </td>
        <td class="markdown level1 summary"><p>Requests to change <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.automation.togglestate">ToggleState</a> of the element and raises <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.windows.automation.provider.itoggleprovider.togglestate">ToggleState</a> property change event.</p>
</td>
      </tr>
    </tbody>
  </table>

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