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[Fix] missing parent when using QMessageBox.critical

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This commit is contained in:
vn.py 2019-05-09 16:29:15 +08:00
parent 9557534eaf
commit fb4d7c9c01
1 changed files with 2 additions and 2 deletions
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4
vnpy/trader/ui/widget.py
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@ -824,12 +824,12 @@ class TradingWidget(QtWidgets.QWidget):
""" """
symbol = str(self.symbol_line.text()) symbol = str(self.symbol_line.text())
if not symbol: if not symbol:
QtWidgets.QMessageBox.critical("委托失败", "请输入合约代码") QtWidgets.QMessageBox.critical(self, "委托失败", "请输入合约代码")
return return
volume_text = str(self.volume_line.text()) volume_text = str(self.volume_line.text())
if not volume_text: if not volume_text:
QtWidgets.QMessageBox.critical("委托失败", "请输入委托数量") QtWidgets.QMessageBox.critical(self, "委托失败", "请输入委托数量")
return return
volume = float(volume_text) volume = float(volume_text)