Binding ContextMenu inside Button that is inside a ItemsControl

Question

I have an ItemsControl inside a UserControl, and my ItemsControl ItemTemplate consist of a button. I can get the button's binding command to work, but cannot get the ContextMenu inside the button to work. Can someone show me how my Binding should look inside my button's ContextMenu?

<ItemsControl ItemsSource="{Binding People}">
    <ItemsControl.ItemsPanel>
        <ItemsPanelTemplate>
            <WrapPanel Margin="0" />
        </ItemsPanelTemplate>
    </ItemsControl.ItemsPanel>

    <ItemsControl.ItemTemplate>
        <DataTemplate>
            <Button Command="{Binding DataContext.ShowPeopleDetailsAction, RelativeSource={RelativeSource AncestorType=ItemsControl}}" 
                    CommandParameter="{Binding CommandParameterIndex}" Background="Black" Cursor="Hand" Margin="1,0,14,10">
                <Button.ContextMenu>
                    <ContextMenu>
                        <MenuItem Header="Clear" Command="{Binding DataContext.ClearPeopleDetailsAction, RelativeSource={RelativeSource AncestorType=ItemsControl, Mode=FindAncestor}}" 
                                  CommandParameter="{Binding CommandParameterIndex}" />
                    </ContextMenu>
                </Button.ContextMenu>
                <Button.Template>
                    <ControlTemplate>
                        <Grid>
                            <Image Source="/Resources;component/Images/people.png" Width="112"/>
                            <Label Content="{Binding PowerSupplyName, FallbackValue=default}" 
                                   Visibility="{Binding IsConfigured, Converter={StaticResource booleanToStringConverter}, FallbackValue=Visible}" 
                                   Foreground="White" FontWeight="Bold" Margin="0,15,0,0" Padding="0" HorizontalAlignment="Center" MaxWidth="110" />
                        </Grid>
                    </ControlTemplate>
                </Button.Template>
            </Button>
        </DataTemplate>
    </ItemsControl.ItemTemplate>
</ItemsControl>

The binding on the contextmenu does not work. If I right click and select clear, nothing happens. — Wannabe Coder, Dec 16 '14 at 17:57
Are you seeing binding errors in the output window? Is that command actually being assigned to? — BradleyDotNET, Dec 16 '14 at 17:59
@BradleyDotNET, there are no binding errors. When I start up my application, I do not see the binding being set. stukselbax, I will check out that link you posted to see if it will help. Thanks. — Wannabe Coder, Dec 16 '14 at 18:07
If there are no binding errors, then your binding likely isn't the problem. Make sure that you are initializing the bound property correctly. — BradleyDotNET, Dec 16 '14 at 18:09
@stukselbax, the link you posted was close enough to my problem that it fixed it...thanks. — Wannabe Coder, Dec 16 '14 at 18:13

Binding ContextMenu inside Button that is inside a ItemsControl

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