KeeAgent.KeeAgentExt.MainForm_FileClosing C# (CSharp) Method

        private void MainForm_FileClosing(object aSender,
            FileClosingEventArgs aEventArgs)
        {
            try {
            removeKeyList.Clear();
            var allKeys = agent.GetAllKeys();
            foreach (var entry in aEventArgs.Database.RootGroup.GetEntries(true)) {
              try {
            var settings = entry.GetKeeAgentSettings();
            if (settings.AllowUseOfSshKey && settings.RemoveAtDatabaseClose) {
              var matchKey = entry.GetSshKey();
              if (matchKey == null) {
                continue;
              }
              var removeKey = allKeys.Get(matchKey.Version, matchKey.GetPublicKeyBlob());
              if (removeKey == null) {
                continue;
              }
              removeKeyList.Add(removeKey);
            }
              } catch (Exception ex) {
            // keep trying the rest of the keys
            Debug.Fail(ex.ToString());
              }
            }
              } catch (Exception ex) {
            // can't be crashing KeePass
            Debug.Fail(ex.ToString());
              }
        }