private void ReadHistoryData_Executed(object sender, ExecutedRoutedEventArgs e)
{
if (hvm.StartTime > hvm.EndTime)
{
DXMessageBox.Show("开始时间不能大于结束时间！", "提示", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
hvm.SendReadHistoryCommand(HistoryTypeComo.SelectedIndex);
}