How to bind the items count of listview in XAML - xaml

Question

I have a problem with binding the count to the textblock.
I have a listview that it's items are binded to a Users object properties.
I want to get the count of all items that were binded.
Here is my ListView:
<ListView ItemsSource="{Binding Users}" x:Name="lvUsers">
<ListView.ItemTemplate>
<DataTemplate>
<ListViewItem IsHitTestVisible="False">
<StackPanel>
<facebookControls:ProfilePicture Height="74" Width="74" ProfileId="{Binding FacebookId}" />
<TextBlock Text="{Binding UserName}" FontSize="18" HorizontalAlignment="Center" />
</StackPanel>
</ListViewItem>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
And here is my TextBlock:
<TextBlock Text="{Binding ElementName=lvUsers, Path=Items.Count, Mode=OneWay}" />
What am I doing wrong?
I know that if my ListView will be without Templates, just ListViewItems, it will work, but I need it to be like that.

Answer 1

Override the template for this ListView.
The sample below basically creates a style where it overrides the control template such that the regular ListView items (the ItemsPresenter) is wrapped in the StackPanel so that the TextBlock with count or whatever else can be added at the bottom.
<ListView ItemsSource="{Binding Users}">
<ListView.Style>
<Style TargetType="{x:Type ListView}">
<Style.Setters>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Border BorderThickness="1" BorderBrush="LightGray">
<StackPanel>
<ScrollViewer>
<ItemsPresenter />
</ScrollViewer>
<TextBlock Margin="0,4" FontWeight="Bold">
<Run Text="Count: "/>
<Run Text="{Binding RelativeSource={RelativeSource AncestorType={x:Type ListView}}, Path=Items.Count, Mode=OneWay}"/>
</TextBlock>
</StackPanel>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style.Setters>
</Style>
</ListView.Style>
<ListView.ItemTemplate>
<DataTemplate>
<ListViewItem IsHitTestVisible="False">
<StackPanel>
<facebookControls:ProfilePicture Height="74" Width="74" ProfileId="{Binding FacebookId}" />
<TextBlock Text="{Binding UserName}" FontSize="18" HorizontalAlignment="Center" />
</StackPanel>
</ListViewItem>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>