How to set ContextMenu for GridView without breaking Fluent Theme?

[masterLazy]

I'm using .NET-10.0.100-rc.1.25451.107.

I tried following code to create a GridView with a ContextMenu for each row:

<ListView ItemsSource="{Binding Source={StaticResource EmployeeInfoDataSource}}">
    <!--Menu-->
    <ListView.ItemContainerStyle>
        <Style TargetType="ListViewItem">
            <Setter Property="ContextMenu">
                <Setter.Value>
                    <ContextMenu>
                        <MenuItem Header="Remove"/>
                    </ContextMenu>
                </Setter.Value>
            </Setter>
        </Style>
    </ListView.ItemContainerStyle>
    <!--List-->
    <ListView.View>
        <GridView AllowsColumnReorder="true" ColumnHeaderToolTip="Employee Information">
            <GridViewColumn DisplayMemberBinding="{Binding Path=FirstName}" Header="First Name" Width="100"/>
            <GridViewColumn DisplayMemberBinding="{Binding Path=LastName}" Header="Last Name" Width="100"/>
            <GridViewColumn DisplayMemberBinding="{Binding Path=EmployeeNumber}" Header="Employee No." Width="150"/>
        </GridView>
    </ListView.View>
</ListView>

But after adding <ListView.ItemContainerStyle>, my GridView has lost Fluent Theme like this:

I also trid to set BasedOn="{StaticResource {x:Type ListViewItem}}" in <Style>, but after I got this error:

How can I have the GridView work as expected?

[masterLazy]

Are there any ideas? The problem is still remained in the latest .NET 10 release.

[DisillusionedDeveloper]

Hi masterLazy, does using this line

<Style TargetType="ListViewItem" BasedOn="{StaticResource {x:Static GridView.GridViewItemContainerStyleKey}}">

solve the second problem of your Employee-Items being rendered by their ToString-Method rather than by the Columns you defined in XAML?

When taking a look at the very bottom of ListViewItem.xaml it seems that DefaultListViewItemStyle is set as the default style for ListViewItem. This DefaultListViewItemStyle (found in the same file) defines a ControlTemplate based on ListBoxItem and not on ListViewItem (is that a mistake maybe?). May humble guess is that this causes the fallback to the false rendering when overwriting ItemContainerStyle without basing it on the right Style, because the style that gets used in that case is based on ListBoxItem. The correct Style meant for ListViewItem seems to be the one with the Key {x:Static GridView.GridViewItemContainerStyleKey} which defines a ControlTemplate correctly based on ListViewItem.

Best wishes from Germany

[masterLazy]

Thanks for your detailed analyses. Your provided line really solve the problem.

I also suggest that TargetType="{x:Type ListBoxItem}" in ListViewItem.xaml, line 33 may be a mistake. In the future, This dicussion may be transfered into an issue, and more experiment about this mistake-like behavior will be carried on.