[Mod] only register event if event_type is specified

2019-05-30 12:34:07 +08:00 · 2019-05-30 12:34:07 +08:00 · 82aeceff70
commit 82aeceff70
parent adc148c593
1 changed files with 3 additions and 2 deletions
--- a/vnpy/trader/ui/widget.py
+++ b/vnpy/trader/ui/widget.py
@ -237,6 +237,7 @@ class BaseMonitor(QtWidgets.QTableWidget):
        """
        Register event handler into event engine.
        """
+        if self.event_type:
            self.signal.connect(self.process_event)
            self.event_engine.register(self.event_type, self.signal.emit)