Question

In coding a WPF application I used a ListView and defined an template as a resource at that level:

<ListView IsSynchronizedWithCurrentItem="true" ItemTemplate="{StaticResource CardViewTemplate}">
    <!--ItemTemplate="{StaticResource CardViewTemplate}" -->
    <ListView.ItemsPanel>
        <ItemsPanelTemplate>
            <WrapPanel></WrapPanel>
        </ItemsPanelTemplate>
    </ListView.ItemsPanel>
    <ListView.Resources>
        <DataTemplate x:Key="CardViewTemplate">
            <GroupBox Header="{Binding Path=Product Name}" Width="290" BorderThickness="4" FontSize="14"
                    FontStyle="Normal" Padding="10" BorderBrush="DarkBlue" Background="{x:Null}" Margin="12"
                    UseLayoutRounding="True">
                <StackPanel Name="stackPanel1">
                    <WrapPanel Orientation="Vertical" Name="wrapPanel1">
                        <WrapPanel Orientation="Horizontal">
                            <TextBlock MinWidth="80" Text="{Binding Path=Product
                                                             Name}" FontSize="16" FontWeight="Bold"
                                    TextAlignment="Center" />
                        </WrapPanel>
            </GroupBox>
        </DataTemplate>
    </ListView.Resources>
</ListView>

This works perfectly however when I use a Resource (Expression Dark) at the Window Level the ListView appears blank.

Any suggestions as to what could be the cause? I have tried everything I could think about

Answer 1

There could be multiple reasosns…

1. Is your ListView directly under your Window?
2. If your Dark template correctly configured?

3. Does it apply if you directly set it under the list view (without static resource reference)…

    <ListView>
      <ListView.ItemTemplate>
         <DataTemplate x:Key="CardViewTemplate">
             ...
         </DataTemplate> 
      </ListView.ItemTemplate>
    </ListView> 
   

?