Added Heading Reset Button to sample applications

SampleApps/Shared/ValueConverters.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Globalization;
+#if WINUI
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Data;
+#elif UWP
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Data;
+#else
+using System.Windows;
+using System.Windows.Data;
+#endif
+
+namespace SampleApplication
+{
+    public class HeadingToVisibilityConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, string language)
+        {
+            return (double)value != 0d ? Visibility.Visible : Visibility.Collapsed;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, string language)
+        {
+            throw new NotImplementedException();
+        }
+
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return Convert(value, targetType, parameter, "");
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return ConvertBack(value, targetType, parameter, "");
+        }
+    }
+}