MainWindow.xaml

<Window x:Class="SecureAppVault.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="SecureAppVault" Height="450" Width="800">
    <Grid>
        <StackPanel Orientation="Vertical" HorizontalAlignment="Center" VerticalAlignment="Center">
            <Button Name="UnlockVaultButton" Content="{Binding IsUnlocked, Converter={StaticResource BoolToLockContentConverter}}" Width="200" Height="50" Click="UnlockVaultButton_Click"/>
            <StackPanel Visibility="{Binding IsUnlocked, Converter={StaticResource BoolToVisibilityConverter}}">
                <Button Name="AddAppButton" Content="Add Application" Width="200" Height="50" Click="AddAppButton_Click"/>
                <Button Name="RemoveAppButton" Content="Remove Application" Width="200" Height="50" Click="RemoveAppButton_Click"/>
                <Button Name="RunAppButton" Content="Run Application" Width="200" Height="50" Click="RunAppButton_Click"/>
                <ListBox Name="AppListBox" ItemsSource="{Binding WhitelistedApps}" DisplayMemberPath="Name" Width="200" Height="200"/>
            </StackPanel>
        </StackPanel>
    </Grid>
</Window>