<div class="content" name="IAppHostElement" uuid="59774887-09e3-4de5-ad8e-4794f404b123"><p>The IAppHostElement <a href="4e36e522-a35d-4fec-bc9c-6ed14d49d5ca#gt_95913fbd-3262-47ae-b5eb-18e6806824b9" data-linktype="relative-path">interface</a> provides methods
to the base administration system object of this whole project.</p><p>The administration system is a container of IAppHostElement
objects. IAppHostElement objects are primarily an <i>n</i>-way-tree object,
with each IAppHostElement object primarily containing:</p><ul><li><p><span><span> 
</span></span>Zero or more <a href="564b4c1f-13a0-40c4-974b-1cbbd41764b3" data-linktype="relative-path">IAppHostProperty</a>
objects. Each has its own unique fixed name.</p>
</li><li><p><span><span> 
</span></span>Zero or more child IAppHostElement objects (hence the <i>n</i>-way-tree
description). Each has its own unique fixed name.</p>
</li><li><p><span><span> 
</span></span>An optional collection of zero or more special child IAppHostElement
objects that are called collection objects. Each typically has the same fixed
name.</p>
</li><li><p><span><span> 
</span></span>Zero or more <a href="9154a520-ce4f-43e1-95c2-63590cfea206" data-linktype="relative-path">IAppHostMethod</a>
objects, which are additional extension methods that can be executed on the
specified IAppHostElement object.</p>
</li></ul><p>The IAppHostElement interface inherits opnums 0–2 from the <a href="../ms-dcom/2b4db106-fb79-4a67-b45f-63654f19c54c" data-linktype="relative-path">IUnknown</a>
interface.</p><p>Methods in RPC Opnum Order</p><table><thead>
  <tr>
   <th>
   <p>Method</p>
   </th>
   <th>
   <p>Description</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>Name</td>
  <td>Opnum: 3</td>
 </tr><tr>
  <td>Collection</td>
  <td>Opnum: 4</td>
 </tr><tr>
  <td>Properties</td>
  <td>Opnum: 5</td>
 </tr><tr>
  <td>ChildElements</td>
  <td>Opnum: 6</td>
 </tr><tr>
  <td>GetMetadata</td>
  <td>Opnum: 7</td>
 </tr><tr>
  <td>SetMetadata</td>
  <td>Opnum: 8</td>
 </tr><tr>
  <td>Schema</td>
  <td>Opnum: 9</td>
 </tr><tr>
  <td>GetElementByName</td>
  <td>Opnum: 10</td>
 </tr><tr>
  <td>GetPropertyByName</td>
  <td>Opnum: 11</td>
 </tr><tr>
  <td>Clear</td>
  <td>Opnum: 12</td>
 </tr><tr>
  <td>Methods</td>
  <td>Opnum: 13</td>
 </tr></tbody></table><p> </p></div>