Question

            <ListView SelectionChanged="RecordSelected" Height="134" HorizontalAlignment="Left" Margin="10,10,0,0" Name="processList" VerticalAlignment="Top" Width="207">
                <ListView.ItemTemplate>
                    <DataTemplate x:Name="record" DataType="{x:Type local:MyApp}">
                        <StackPanel Name="cell" Orientation="Vertical" KeyUp="cell_KeyUp">
                            <StackPanel KeyUp="cell_KeyUp" GotFocus="RecordSelected" KeyDown="RecordSelected" MouseDown="RecordSelected" Orientation="Horizontal" Tag="{Binding MyApp}">
                                <CheckBox BorderThickness="1" IsChecked="{Binding IsChecked}" Margin="3,3,3,3" Name="checkbox" />
                                <TextBlock GotFocus="RecordSelected" HorizontalAlignment="Left" KeyDown="RecordSelected" Margin="3,0,0,3" Name="displayname" Text="{Binding DisplayName}" VerticalAlignment="Center" Width="200" />
                            </StackPanel>
                        </StackPanel>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>

I added a KeyUp event on both the stackpanels inside the datatemplate, but it wouldn’t fire.

Answer 1

The KeyUp event won’t trigger since it is the ListViewItem that has the focus. Subscribe to the KeyUp event in the ItemContainerStyle instead

<ListView ...>
    <ListView.ItemContainerStyle>
        <Style TargetType="ListViewItem">
            <EventSetter Event="KeyUp" Handler="cell_KeyUp"/>
        </Style>
    </ListView.ItemContainerStyle>
    <ListView.ItemTemplate>
        <!-- ... -->
    </ListView.ItemTemplate>
</ListView>

In the event handler the sender will be the focused ListViewItem. Cast Content of it to your source and toggle IsChecked. This will work if your source class implements INotifyPropertyChanged. Otherwise, you can search the Visual Tree to find the child CheckBox of the ListViewItem