WPF: How to make HeaderedContentControl.Content fit height? - wpf

Question

I am having a form in maximize mode, within the form contains a HeaderContentControl.
Within the HeaderContentControl.Content, i added a DockLayout, but the problem is that DockLayout is not fit to the form height.
How can I resolve this problem? Here's the xaml file:
<Window x:Class="Prototype.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:Prototype"
Title="XXX"
x:Name="frmMain"
Width="581" Height="340" ResizeMode="CanMinimize"
WindowStartupLocation="CenterScreen" WindowState="Maximized"
WindowStyle="None" IsHitTestVisible="True" Topmost="False" AllowsTransparency="True" Background="Transparent" Loaded="frmMain_Loaded">
<!-- Copyright Microsoft Corporation. All Rights Reserved. -->
<Window.Resources>
<Style TargetType="{x:Type local:MainWindow}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:MainWindow}">
<Border Background="#FF333333"
BorderBrush="#FFCCCCCC"
BorderThickness="1"
CornerRadius="5"
Padding='2'>
<HeaderedContentControl>
<HeaderedContentControl.Header>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="19*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="212*" />
<ColumnDefinition Width="84*" />
<ColumnDefinition Width='Auto' />
</Grid.ColumnDefinitions>
<Rectangle Grid.ColumnSpan="3" Fill="#FF505050" />
<TextBlock FontSize="13"
FontWeight='Bold'
VerticalAlignment='Center'
Margin="6,5,3,6"
Text="XXX" Grid.ColumnSpan="2" OpacityMask="#FFCECECE" Foreground="#FFF3F3F3" Height="20" />
<Button x:Name='WindowCloseButton'
Grid.Column="2"
Width="17"
Height="17"
Cursor='Hand'
Margin="8,6,6,8"
VerticalAlignment='Center'
Click='WindowCloseButton_Click' FontFamily="Lucida Console">
<Button.Background>
<ImageBrush />
</Button.Background>
<Image Source="/Prototype;component/Resource/window-close.png"></Image>
</Button>
</Grid>
</HeaderedContentControl.Header>
<!-- New Content Area -->
<HeaderedContentControl.Content>
<ContentPresenter Content="{TemplateBinding Content}" />
</HeaderedContentControl.Content>
</HeaderedContentControl>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style TargetType="{x:Type MenuItem}">
<Setter Property="Foreground" Value="#FF7B7B7B"></Setter>
<Style.Triggers>
<Trigger Property="IsHighlighted" Value="True">
<Setter Property="Foreground" Value="#333333"></Setter>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Foreground" Value="#333333"></Setter>
</Trigger>
</Style.Triggers>
</Style>
</Window.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="23" />
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Menu Height="23" Name="menuContext" Margin="0,0" Background="#FF7B7B7B" Foreground="White" Grid.Row="0">
<MenuItem Header="File" Background="#FF7B7B7B" Foreground="White">
<MenuItem Header="Open" Margin="0,1"/>
<MenuItem Header="Save" Margin="0,1"/>
<MenuItem Header="Exit" Margin="0,1" UseLayoutRounding="True" />
</MenuItem>
</Menu>
<Grid Grid.Row="1" ShowGridLines="True">
<DockPanel LastChildFill="True">
<Border Height="25"
Background="SkyBlue"
BorderBrush="Black"
BorderThickness="1"
DockPanel.Dock="Top">
<TextBlock Foreground="Black">Dock = "Top"</TextBlock>
</Border>
<Border Height="25"
Background="SkyBlue"
BorderBrush="Black"
BorderThickness="1"
DockPanel.Dock="Top">
<TextBlock Foreground="Black">Dock = "Top"</TextBlock>
</Border>
<Border Height="25"
Background="LemonChiffon"
BorderBrush="Black"
BorderThickness="1"
DockPanel.Dock="Bottom">
<TextBlock Foreground="Black">Dock = "Bottom"</TextBlock>
</Border>
<Border Width="200"
Background="PaleGreen"
BorderBrush="Black"
BorderThickness="1"
DockPanel.Dock="Left">
<TextBlock Foreground="Black">Dock = "Left"</TextBlock>
</Border>
<Border Background="White"
BorderBrush="Black"
BorderThickness="1">
<TextBlock Foreground="Black">This content will "Fill" the remaining space</TextBlock>
</Border>
</DockPanel>
</Grid>
</Grid>
</Window>

Answer 1

Problem here is HeaderedContentControl uses StackPanel internally to layout header and content.
To fix that, use a Grid instead or re-template HeaderedContentControl to use Grid.
Example:
<ControlTemplate TargetType="HeaderedContentControl">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<ContentControl Content="{TemplateBinding Header}" Grid.Row="0" />
<ContentControl Content="{TemplateBinding Content}" Grid.Row="1" />
</Grid>
</ControlTemplate>

Answer 2

Adding a similar answer to the accepted one, but which uses a DockPanel instead of a Grid for a simpler implementation with the same results.
Example with DockPanel:
<ControlTemplate TargetType="HeaderedContentControl">
<DockPanel>
<ContentControl Content="{TemplateBinding Header}" DockPanel.Dock="Top" />
<ContentControl Content="{TemplateBinding Content}" />
</DockPanel>
</ControlTemplate>