title: Checkbox: Content-binding based on multiple fields
body: <p>I currently have a <code>combobox</code> with <code>checkboxes</code> as items.</p>
  
  <pre><code>        &lt;ComboBox Height="25" Width="70" HorizontalAlignment="Left" Name="cbDivision" VerticalAlignment="Center"&gt;
              &lt;ComboBox.ItemTemplate&gt;
                  &lt;DataTemplate&gt;
                      &lt;StackPanel Orientation="Horizontal"&gt;
                          &lt;CheckBox Tag="{Binding DivID}" Content="{Binding DivDescr}" Checked="CheckBox_Checked" Unchecked="CheckBox_Unchecked" &gt;&lt;/CheckBox&gt;
                      &lt;/StackPanel&gt;
                  &lt;/DataTemplate&gt;
              &lt;/ComboBox.ItemTemplate&gt;
          &lt;/ComboBox&gt;
  </code></pre>
  
  <p>I want to change the format of my content in those textboxes to:</p>
  
  <pre><code>DivDescr(DivID)
  </code></pre>
  
  <p>I tried using the following methods but so far no luck:</p>
  
  <pre><code>Content="{Binding DivDescr(Binding DivID)}"
  Content="{Binding DivDescr}({Binding DivID})"
  </code></pre>
  
  <p>Could anyone point me to the right answer?</p>
  
  <p>Thank you for your time</p>