title: Doesn´t hand MenuItem Click into viewmodel
body: <p>I have this style into ResourceDictionary. This is a ToggleButton´s list. I add a contextMenu to each button and I want to hand into the viewmodel the click event. I have the method Editindicator into viewmodel. When I run the project and i click over contextmenu item it broke and show this error "{"No target found for method Click."}". I think that this error is owing to menuitem has lost viewmodel´s datacontext. 
  Can anyone help here? Thanks a lot in advice.</p>
  
  <pre><code>&lt;Style x:Key="ListBoxStyleIndicador" TargetType="{x:Type ListBoxItem}"&gt;
          &lt;Setter Property="HorizontalContentAlignment" Value="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/&gt;
      &lt;Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/&gt;
      &lt;Setter Property="Padding" Value="2,0,2,0"/&gt;
      &lt;Setter Property="Template"&gt;
          &lt;Setter.Value&gt;
              &lt;ControlTemplate x:Name="ListBoxStyleIndicadorTemplate" TargetType="{x:Type ListBoxItem}"&gt;
                  &lt;Border x:Name="Bd"
                          BorderBrush="{TemplateBinding BorderBrush}"
                          BorderThickness="{TemplateBinding BorderThickness}"
                          Background="{TemplateBinding Background}" 
                          Padding="{TemplateBinding Padding}" 
                          SnapsToDevicePixels="true"&gt;
                      &lt;Controles:ToggleButtonIndicador 
                          Content="{Binding NombreIndicador}" 
                          IdBIIndicadores="{Binding IdBiIndicadores}" 
                          IsChecked="{Binding IsSelected, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ListBoxItem}}}" 
                          Style="{DynamicResource BotonNegro}"
                          Padding="6,2"                             
                          ToolTip="{Binding Descripcion}"&gt;
                          &lt;Controles:ToggleButtonIndicador.ContextMenu &gt;
                              &lt;ContextMenu&gt;
                                  &lt;MenuItem Header="Editar"&gt;
                                      &lt;MenuItem.Icon&gt;
                                          &lt;Image Source="{DynamicResource ImagenBotonEditar}" /&gt;                                            
                                      &lt;/MenuItem.Icon&gt;
                                      &lt;Interactivity:Interaction.Triggers&gt;
                                          &lt;Interactivity:EventTrigger EventName="Click"&gt;
                                              &lt;cal:ActionMessage MethodName="EditIndicator" /&gt;
                                          &lt;/Interactivity:EventTrigger&gt;
                                      &lt;/Interactivity:Interaction.Triggers&gt;
                                  &lt;/MenuItem&gt;                                  
                              &lt;/ContextMenu&gt;
                          &lt;/Controles:ToggleButtonIndicador.ContextMenu&gt;
                      &lt;/Controles:ToggleButtonIndicador&gt;
                  &lt;/Border&gt;
              &lt;/ControlTemplate&gt;
          &lt;/Setter.Value&gt;
      &lt;/Setter&gt;
      &lt;Setter Property="IsSelected" Value="{Binding Seleccionado, Mode=TwoWay}"/&gt;        
  &lt;/Style&gt;
  </code></pre>
  
  <p></p>