# C1.WPF.ExpressionEditor.C1ExpressionRichTextBox.ShowDescriptionToolTip

## Content

<div class="doc-site-dotnet-api-container">



<h1 id="C1_WPF_ExpressionEditor_C1ExpressionRichTextBox_ShowDescriptionToolTip_" data-uid="C1.WPF.ExpressionEditor.C1ExpressionRichTextBox.ShowDescriptionToolTip*">ShowDescriptionToolTip Method
</h1>
<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_WPF_ExpressionEditor_C1ExpressionRichTextBox_ShowDescriptionToolTip_" data-uid="C1.WPF.ExpressionEditor.C1ExpressionRichTextBox.ShowDescriptionToolTip*"></a>
<h4 id="C1_WPF_ExpressionEditor_C1ExpressionRichTextBox_ShowDescriptionToolTip_C1_ExpressionEditor_Engine_ExpressionItem_System_Double_System_Double_" data-uid="C1.WPF.ExpressionEditor.C1ExpressionRichTextBox.ShowDescriptionToolTip(C1.ExpressionEditor.Engine.ExpressionItem,System.Double,System.Double)">ShowDescriptionToolTip(ExpressionItem, double, double)</h4>
<div class="markdown level1 summary"><p>Show the tooltip of description.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">public void ShowDescriptionToolTip(ExpressionItem item, double x, double y)</code></pre>
</div>
<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Sub ShowDescriptionToolTip(item As ExpressionItem, x As Double, y As Double)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="C1.ExpressionEditor.Engine.ExpressionItem.html">ExpressionItem</a></td>
      <td><span class="parametername">item</span></td>
      <td><p>The expression item.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></td>
      <td><span class="parametername">x</span></td>
      <td><p>The point of the x.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></td>
      <td><span class="parametername">y</span></td>
      <td><p>The point of the y.</p>
</td>
    </tr>
  </tbody>
</table>


<a id="C1_WPF_ExpressionEditor_C1ExpressionRichTextBox_ShowDescriptionToolTip_" data-uid="C1.WPF.ExpressionEditor.C1ExpressionRichTextBox.ShowDescriptionToolTip*"></a>
<h4 id="C1_WPF_ExpressionEditor_C1ExpressionRichTextBox_ShowDescriptionToolTip_C1_ExpressionEditor_Engine_ExpressionItem_System_Double_System_Double_System_Int32_" data-uid="C1.WPF.ExpressionEditor.C1ExpressionRichTextBox.ShowDescriptionToolTip(C1.ExpressionEditor.Engine.ExpressionItem,System.Double,System.Double,System.Int32)">ShowDescriptionToolTip(ExpressionItem, double, double, int)</h4>
<div class="markdown level1 summary"><p>Show the tooltip of description.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">public void ShowDescriptionToolTip(ExpressionItem item, double x, double y, int argNum)</code></pre>
</div>
<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Sub ShowDescriptionToolTip(item As ExpressionItem, x As Double, y As Double, argNum As Integer)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="C1.ExpressionEditor.Engine.ExpressionItem.html">ExpressionItem</a></td>
      <td><span class="parametername">item</span></td>
      <td><p>The expression item.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></td>
      <td><span class="parametername">x</span></td>
      <td><p>The point of the x.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></td>
      <td><span class="parametername">y</span></td>
      <td><p>The point of the y.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">argNum</span></td>
      <td><p>The number of parameters.</p>
</td>
    </tr>
  </tbody>
</table>
</div>