Listview not grey when disabled.

Question

Hi, this is the issue:
When I have a messagebox opened I disable the other windows, but I don't want them greyed out.
I managed to change the model for all controls in order to do that, but I couldn't to it with the list view (though I managed to to it with the listview items).
As you can see in the picture the items are of the right color when disabled, but the background is stille grey.
When I rightclicked the listview to change the model, it automatically created this XAML code inside " <Window.Resources>", which I though I would edit like I did with all other controls:
<ControlTemplate x:Key="ListViewControlTemplate1" TargetType="{x:Type ListView}">
<Themes:ListBoxChrome x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderFocused="{TemplateBinding IsKeyboardFocusWithin}" SnapsToDevicePixels="True">
<ScrollViewer Padding="{TemplateBinding Padding}" Style="{DynamicResource}">
<ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</ScrollViewer>
</Themes:ListBoxChrome>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsGrouping" Value="True"/>
<Condition Property="VirtualizingPanel.IsVirtualizingWhenGrouping" Value="False"/>
</MultiTrigger.Conditions>
<Setter Property="ScrollViewer.CanContentScroll" Value="False"/>
</MultiTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
and then referenced the template in the listview control:
<ListView x:Name="lstBeats_Copy" HorizontalAlignment="Left" Height="23" Margin="11,179,0,0" VerticalAlignment="Top" Width="237" Background="#FFFFE3C2" Grid.Row="1" TabIndex="3" Template="{DynamicResource ListViewControlTemplate1}" >
But even if I don't edit it, just when its added I get:
XamlParseException: L'impostazione della proprietà 'System.Windows.Controls.Decorator.Child' generates exception.
Is there any way?
Thanks!

Answer 1

A Listview is a pretty simple control template wise.
It's the listview items which are complicated.
I would be tempted just to replace the entire template.
Something like:
<Style TargetType="{x:Type ListView}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListView">
<Border BorderBrush="LightGray" BorderThickness="1">
<ScrollViewer>
<ItemsPresenter />
</ScrollViewer>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
I'm not sure about this disabling things but not changing colour though.
It's usual windows behaviour to change colour when disabled.
Hope that helps.
Recent Technet articles: Property List Editing;
Dynamic XAML