fix #389: crash on empty statistic data.

2015-12-17 01:21:51 +08:00
parent 0090f18fcc
commit 0a45895342
1 changed files with 3 additions and 0 deletions
@@ -85,6 +85,9 @@ namespace Shadowsocks.View
        {
            string serverName = _servers[serverSelector.SelectedIndex];
            _dataTable.Rows.Clear();
+
+            //return directly when no data is usable
+            if (_controller.availabilityStatistics?.FilteredStatistics == null) return;
            List<AvailabilityStatistics.RawStatisticsData> statistics;
            if (!_controller.availabilityStatistics.FilteredStatistics.TryGetValue(serverName, out statistics)) return;
            IEnumerable<IGrouping<int, AvailabilityStatistics.RawStatisticsData>> dataGroups;