title: Cannot display two scrollview together in stacklayout in Xamarin Forms
body: <p>I try to add two horizontal scrollviews together in one stacklayout. But displayed only last scrollview(<code>scrollView1</code>). Why first <code>scrollView</code> doesn't display?</p>
  
  <pre><code>var avatarLayout = new StackLayout()
              {
                 HeightRequest = 500,
              };
  
  StackLayout st = new StackLayout()
                  {
                      Orientation = StackOrientation.Horizontal
                  };
                  st.Children.Add(postImage1);
                  st.Children.Add(postImage2);
                  st.Children.Add(postImage3);
  
  StackLayout st1 = new StackLayout()
                  {
                      Orientation = StackOrientation.Horizontal
                  };
                  st1.Children.Add(postImage4);
                  st1.Children.Add(postImage5);
                  st1.Children.Add(postImage6);
  
                  ScrollView scrollView = new ScrollView()
                      {
                      HorizontalOptions = LayoutOptions.Fill,
                      Orientation = ScrollOrientation.Horizontal,
                      Content = new StackLayout{
                          Orientation = StackOrientation.Horizontal,
                          Children = {st}
                      }
                  };
  
                  ScrollView scrollView1 = new ScrollView()
                  {
                      HorizontalOptions = LayoutOptions.Fill,
                      Orientation = ScrollOrientation.Horizontal,
                      Content = new StackLayout
                      {
                          Orientation = StackOrientation.Horizontal,
                          Children = {st1}
                      }
                  };
                  avatarLayout.Children.Add(avatarImage);
                  avatarLayout.Children.Add(friends);
                  avatarLayout.Children.Add(scrollView);
                  avatarLayout.Children.Add(cars);
                  avatarLayout.Children.Add(scrollView1);
                  avatarLayout.Children.Add(posts1);
  </code></pre>
  
  <p><strong>Solved.</strong></p>