contentSize is 0 TableView

Hi everyone,

I've been struggling with this for two days now and still can't seem to get it fixed.. so I hope you guys are able to help me out!

I have a page which has a WebView and a ListView. Both items are able to scroll on it's own, but I do not want that. I want the page to be fully scrollable.
This means I have to place both objects inside a ScrollView and set the .Height equal to it's contentSize.

For the WebView it was pretty easy, since it has a LoadFinished event I was able to set the Height equal to it's content.

Now I'm writing the ListView and I'm having really trouble with this. Since I am loading my data async from a webservice it seems that the contentsize of the UITableView is always 0 inside my renderer.

`public class RZNoScrollListViewRenderer : ViewRenderer<RZNoScrollTableView, UITableView>
{
private UITableView _tableView;

    protected override void OnElementChanged (ElementChangedEventArgs<RZNoScrollTableView> e)
    {
        base.OnElementChanged (e);

        if (Control == null)
            return;

        _tableView = Control as UITableView;
        ResizeView ();
    }

    public override void LayoutSubviews ()
    {
        base.LayoutSubviews ();
        ResizeView ();
    }

    private async void ResizeView()
    {
        if (_tableView != null) 
        {
            _tableView.LayoutIfNeeded ();
            var contenSizeHeight = _tableView.ContentSize.Height;
            var frame = _tableView.Frame;
            frame.Height = contenSizeHeight;

            _tableView.Frame = frame;

            var listElement = Element as RZNoScrollTableView;
            var bounds = new Xamarin.Forms.Rectangle (Element.Bounds.X, Element.Bounds.Y, Element.Bounds.Width, frame.Height);
            await Element.LayoutTo (bounds, listElement.TransitionSpeedMsec, listElement.Easing);
            Element.HeightRequest = bounds.Height;
        }
    }
}`

Does anyone know how I can reach my goal?