When the default format view is used, only show fields whose type has overridden object.ToString(). For example, the string type has overridden ToString so it is included in the printed fields.

Author: BurtBiel

src/CLU/Microsoft.CLU/Helpers/FormatReader.cs

@@ -71,14 +71,18 @@ internal static ViewDescriptor ReadFormatFile(LocalPackage package, string assem
                 }
             }
 
-            // No formatting file -- just get the public properties.
+            // No formatting file
 
             var list = new ListDescriptor();
 
             foreach (var property in outputType.GetProperties())
             {
-                var column = new ColumnDescriptor { Header = property.Name, ItemName = property.Name };
-                list.Properties.Add(column);
+                bool hasOnlyObjectToString = property.PropertyType.GetMethod("ToString", new Type[] { })?.DeclaringType == typeof(object);
+                if (!hasOnlyObjectToString)
+                {
+                    var column = new ColumnDescriptor { Header = property.Name, ItemName = property.Name };
+                    list.Properties.Add(column);
+                }
             }
 
             return list;