WPF TreeView Command

<TreeView ItemContainerStyle="{StaticResource TheStyle}" Background="White" HorizontalAlignment="Stretch" BorderBrush="Transparent" >
            <i:Interaction.Triggers>
                <i:EventTrigger EventName="SelectedItemChanged">
                    <prismInt:InvokeCommandAction Command="{Binding SelectionChangedCommand}" CommandParameter="{Binding RelativeSource={RelativeSource AncestorType={x:Type TreeView}}, Path=SelectedValue}"/>
                </i:EventTrigger>
            </i:Interaction.Triggers>
            <TreeViewItem ItemsSource="{Binding myobjects}" IsExpanded="True" Focusable="true">
                <DataTemplate>
                    <TextBlock Text="{Binding Name}" />
                </DataTemplate>
                <!--<TextBlock Text="{Binding Name}" />-->
                <TreeViewItem.HeaderTemplate>
                    <DataTemplate>
                        <TextBlock Text="Antennas" DataContext="{Binding Path=DataContext, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type UserControl}}}">
                            <TextBlock.ContextMenu>
                                <ContextMenu>
                                    <MenuItem Header="Add..." Command="{Binding PlacementTarget.DataContext.AddItemCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ContextMenu}}}" />
                                </ContextMenu>
                            </TextBlock.ContextMenu>
                        </TextBlock>
                    </DataTemplate>
                </TreeViewItem.HeaderTemplate>
                <TreeViewItem.ContextMenu>
                    <ContextMenu>
                        <MenuItem Header="Delete" Command="{Binding Path=DeleteItemCommand}" CommandParameter="{Binding PlacementTarget, RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type ContextMenu}}}"/>
                    </ContextMenu>
                </TreeViewItem.ContextMenu>
            </TreeViewItem>
        </TreeView>

-----------------------------------------------------------------------------

ResizeMode="CanMinimize" ShowInTaskbar="True" Topmost="False"

任务栏 点击程序图标 放大缩小