only displaying 2 decimal digits for elevation on viewevents

lib/viewevents.dart

@@ -246,7 +246,7 @@ class _ViewEvents extends State<ViewEvents> {
                       DataCell(
                         TextFormField(
                           readOnly: true,
-                          initialValue: event.elevation,  //TODO: show only 2 digits after decimal point. toStringAsFixed(1),
+                          initialValue:  event.elevation == '' ? '' : double.parse(event.elevation).toStringAsFixed(2),  //TODO: show only 2 digits after decimal point. toStringAsFixed(1),
                           onFieldSubmitted: (val) {
                             event.elevation = val; //Update Database
                           },