//protected Visibility NativeComputedHorizontalScrollBarVisibility
 //{
 //    get
 //    {
 //        return ((NativeScrollViewer)this.ContentNativeUIElement).VerticalScrollBarEnabled;
 //    }
 //    set
 //    {
 //    }
 //}
 //protected Visibility NativeComputedVerticalScrollBarVisibility
 //{
 //    get
 //    {
 //        return ((NativeScrollViewer)this.ContentNativeUIElement).VerticalScrollBarEnabled;
 //    }
 //    set
 //    {
 //    }
 //}
 protected override View CreateDefaultControl(string value)
 {
     var innerDefaultControl = new NativeScrollViewer(this.Context);
     innerDefaultControl.ScrollChanged += innerDefaultControl_ScrollChanged;
     innerDefaultControl.LayoutParameters = this.CreateLayoutParams();
     if (this.Background != null)
         innerDefaultControl.SetBackgroundDrawable(this.Background.ToDrawable());
     var text = new Android.Widget.TextView(this.Context);
     text.LayoutParameters = this.CreateLayoutParams();
     text.Text = value;
     text.SetSingleLine(true);
     innerDefaultControl.ChildView = text;
     this.ContentNativeUIElement = innerDefaultControl;
     return innerDefaultControl;
 }
        /*Group*/
        protected override View CreateLayoutControl(UIElement value)
        {
            LogicalTreeHelper.AddLogicalChild(this, value);
            var innerLayoutControl = new NativeScrollViewer(this.Context);
            innerLayoutControl.ScrollChanged += innerDefaultControl_ScrollChanged;
            innerLayoutControl.LayoutParameters = this.CreateLayoutParams();
            innerLayoutControl.ChildView = value.NativeUIElement;
            SetBackground();
            this.ContentNativeUIElement = innerLayoutControl;

            return this.ContentNativeUIElement;
        }