title: ComboBox Dropdown Appears Beneath Window
body: <p>So I was have a combobox like below, coded like this;</p>
  
  <pre><code>AllowsTransparency="True" Background="Transparent"&gt;
          &lt;Border CornerRadius="10" Background="Beige" BorderBrush="Aqua" BorderThickness="2"&gt;
              &lt;Grid&gt;
                  &lt;StackPanel VerticalAlignment="Center" HorizontalAlignment="Center"&gt;
                      &lt;Label Name="lblText"&gt;&lt;/Label&gt;
                      &lt;ComboBox Name="cbxNumbers"&gt;&lt;/ComboBox&gt;
                      &lt;TextBox Name="txtNumbers" Visibility="Collapsed"&gt;&lt;/TextBox&gt;
                      &lt;Button HorizontalAlignment="Center" Name="btnDone"
  Click="btnDone_Click"&gt;That's Right!&lt;/Button&gt;
                  &lt;/StackPanel&gt;
                  &lt;Button VerticalAlignment="Bottom" HorizontalAlignment="Right" Margin="1"
  FontSize="8" Name="btnChangeInput" Click="btnChangeInput_Click"&gt;Let me chose the number
  &lt;/Button&gt;
              &lt;/Grid&gt;
          &lt;/Border&gt;
  </code></pre>
  
  <p>And then populated in code like this;</p>
  
  <pre><code>lblText.Content = Text;
  cbxNumbers.Items.Add(5);
  cbxNumbers.Items.Add(10);
  cbxNumbers.Items.Add(50);
  cbxNumbers.Items.Add(100);
  cbxNumbers.Items.Add(1000);
  cbxNumbers.Items.Add(10000);
  cbxNumbers.Items.Add(100000);
  cbxNumbers.Items.Add(1000000);
  cbxNumbers.SelectedIndex = 0;
  </code></pre>
  
  <p>My question is obviously, why is my <code>Dropdown</code> showing beneath my window?</p>
  
  <p><img src="https://i.stack.imgur.com/AIjUF.png" alt="ComboBoxProblem"></p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>Quote Microsoft </p>
  
  <blockquote>
    <p>Thank you for reporting this issue. Though this issue is under
    investigation, we will likely not have a fix available in .NET 4.0. We
    will update this bug again when we are able to fix the issue in a
    future release. Thanks!</p>
  </blockquote>
  
  <p>Great... any ideas for a work around?</p>