Get height of all child ListViews - xaml

Question

So I have a ScrollView with a StackPanel. Inside the StackPanel I have three ListViews with different List<object>-sources.
What I want to achieve is to disable scrolling on the ListViews and only scroll all of them in the same ScrollView.
I get something that scrolls a little bit okey when i hardcode the height of the scrollview, but if I don't do that it only snaps back to start after I release the finger. How can I achieve to get the height?
Current XAML:
<Style x:Key="ListViewHeaderDisableScroll" TargetType="ListView">
<Setter Property="ScrollViewer.VerticalScrollMode" Value="Disabled" />
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Disabled" />
<Setter Property="ScrollViewer.IsVerticalRailEnabled" Value="False" />
</Style>
<Page
x:Class="TestApp.SecondaryView.PatientDetailView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:ViewModels="using:TestApp.ViewModel"
mc:Ignorable="d">
<Page.DataContext>
<ViewModels:PatientDetailViewModel />
</Page.DataContext>
<Grid Background="White">
<StackPanel Orientation="Vertical">
/* Menu-Grid*/
<ScrollViewer VerticalScrollMode="Enabled" VerticalScrollBarVisibility="Hidden" IsVerticalRailEnabled="True" Height="800">
<StackPanel Name="StackPanel_Lists">
<ListView Style="{StaticResource ListViewHeaderDisableScroll}" ItemsSource="{Binding DummyProblems}" Background="White">
<ListView.Header>
<StackPanel Style="{StaticResource ListViewHeaderStackPanel}">
<TextBlock Text="HEADER 1" FontSize="18" Foreground="White" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="10,0,0,0"/>
<SymbolIcon Symbol="Play" Foreground="White" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,0,10"/>
</StackPanel>
</ListView.Header>
<ListView.ItemTemplate>
<DataTemplate x:DataType="ViewModels:PatientDetailViewModel">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock FontSize="20" Grid.Row="0" Foreground="DimGray" Margin="5,5,5,5" Text="{Binding Note}"></TextBlock>
<TextBlock FontSize="15" Grid.Row="1" Foreground="DimGray" Margin="5,5,5,5" Text="{Binding Fo}"></TextBlock>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<ListView Style="{StaticResource ListViewHeaderDisableScroll}" ItemsSource="{Binding DummyMeasures}" Background="White">
<ListView.Header>
<StackPanel Background="DarkGray" Orientation="Horizontal" FlowDirection="LeftToRight" Padding="8,8,8,8">
<TextBlock Text="HEADER 2" FontSize="18" Foreground="White" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="10,0,0,0"/>
<SymbolIcon Symbol="Play" Foreground="White" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,0,10"/>
</StackPanel>
</ListView.Header>
<ListView.ItemTemplate>
<DataTemplate x:DataType="ViewModels:PatientDetailViewModel">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<TextBlock FontSize="20" Grid.Row="0" Foreground="DimGray" Margin="5,5,5,5" Text="{Binding Description}"></TextBlock>
<TextBlock FontSize="15" Grid.Row="1" Foreground="DimGray" Margin="5,5,5,5" Text="{Binding Note}"></TextBlock>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<ListView Style="{StaticResource ListViewHeaderDisableScroll}" ItemsSource="{Binding DummyGoals}" Background="White">
<ListView.Header>
<StackPanel Background="DarkGray" Orientation="Horizontal" FlowDirection="LeftToRight" Padding="8,8,8,8">
<TextBlock Text="HEADER 3" FontSize="18" Foreground="White" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="10,0,0,0"/>
<SymbolIcon Symbol="Play" Foreground="White" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,0,10"/>
</StackPanel>
</ListView.Header>
<ListView.ItemTemplate>
<DataTemplate x:DataType="ViewModels:PatientDetailViewModel">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<TextBlock FontSize="20" Grid.Row="0" Foreground="DimGray" Margin="5,5,5,5" Text="{Binding Description}"></TextBlock>
<TextBlock FontSize="15" Grid.Row="1" Foreground="DimGray" Margin="5,5,5,5" Text="{Binding Fo}"></TextBlock>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackPanel>
</ScrollViewer>
</StackPanel>
</Grid>

Answer 1

So I found this:
The StackPanel outside og everything did ruin everything. I changed it to Grid and made the ScrollView *. Now everything works