Xamarin.Forms Listview with 2 line label?

I'm converting a MonoTouch.Dialog app to Xamarin.Forms.

I have a Cell in a ListView and that has a "Detail" line that should be 2 lines long, and should truncate the tail after that.

        var lblDetail = new Label
        {
            LineBreakMode = LineBreakMode.TailTruncation,
            Text = "a really long string that should show 2 lines then ..."
        };

How do I set something like, "Lines = 2"

You might want to customize ListView:

    <ListView x:Name="ListMenu" ItemsSource="{Binding _YourItems_}" >
      <ListView.ItemTemplate>
        <DataTemplate>
          <ViewCell>
            <ViewCell.View>
              <StackLayout Orientation="Horizontal">
                <Label Text="{Binding _YourText_}" TextColor="Black" />
              </StackLayout>
            </ViewCell.View>
          </ViewCell>
        </DataTemplate>
      </ListView.ItemTemplate>
    </ListView>

even if text not fit one line, it will wrap automatically.