Why is my dockpanel's LastChild overflowing its container? - wpf

Question

I have a DockPanel with LastChildFill = true. It has 4 children: a StackPanel(top), another DockPanel(top), and three more StackPanels(bottom, left & none respectively). The last StackPanel ("ResultsPanel") has no DockPanel.Dock property set, nor does it have a width/height, yet when the databinding results in more rows than fit on the screen, it continues down behind the bottom-docked StackPanel. I would expect it to fill the center "hole" that I left between the other docked children.
If I leave the ScrollBarVisibilities set to Auto, it doesn't even show them. Any advice would be appreciated. Here is the pertinent code:
<DockPanel Name="JobsDock" LastChildFill="True">
<StackPanel DockPanel.Dock="Top" Height="40" >
<Label />
<Border CornerRadius="5" Width="90" Height="25" >
<Label Content="Classic View" />
</Border>
</StackPanel>
<DockPanel DockPanel.Dock="Top" Height="70" Name="SearchJobsPanel" >
<ComboBox Name="SearchOptionComboBox" VerticalAlignment="Bottom" Width="240" />
<StackPanel Height="50" Name="JobPanel" Width="90" Visibility="Collapsed" VerticalAlignment="Bottom" >
<Label Content="Job Number" HorizontalAlignment="Center" />
<TextBox Name="JobTextBox" />
</StackPanel>
<StackPanel VerticalAlignment="Bottom" HorizontalAlignment="Right">
<Button Height="25" Name="SearchButton" Width="90">
<StackPanel Orientation="Horizontal">
<Image Stretch="Fill" Margin="0,0,5,0" />
<Label Content="Search" FontSize="10" VerticalContentAlignment="Top" />
</StackPanel>
</Button>
</StackPanel>
</DockPanel>
<StackPanel Name="FiltersPanel" DockPanel.Dock="Left" Width="120" Opacity="0" >
<StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
<Button Name="ResetFilterButton" >
<Image Source="Images/ResetFilter.png" Width="30" />
</Button>
<Button Name="ApplyFilterButton" >
<Image Width="30" />
</Button>
</StackPanel>
<Label Name="ProjectsLabel" />
<Label Name="TasksLabel" Margin="0,10,0,0" />
</StackPanel>
<StackPanel Name="ResultsPanel" Opacity="0">
<ListView x:Name="DisplayedJobListView" ScrollViewer.VerticalScrollBarVisibility="Visible" >
<ListView.View>
<GridView>
</GridView>
</ListView.View>
</ListView>
</StackPanel>

Answer 1

Jurgen, on the msdn forum answered this question for me. Here is his reply:
Hi,
the last (filling) DockPanel child is a StackPanel ("ResultsPanel"). A StackPanel's layout is never defined by containing controls (there is nothing working like VerticalLayout="Stretch" for a StackPanel). It will always take the space neccessary for it's contained controls to fully expand.
As you only have one child in that StackPanel (which has a scrolling mechanism of it's own) remove the StackPanel.
Hope this helps.
Cheers
Jürgen