basic logic

Billing.Shared/UI/Converters.cs

@@ -21,3 +21,20 @@ public class TitleDateConverter : IValueConverter
         return value;
     }
 }
+
+public class MoneyConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        if (value is decimal d)
+        {
+            return "¥ " + d.ToString("n2", CultureInfo.InvariantCulture);
+        }
+        return value;
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        return value;
+    }
+}