private void btnDelete_Click(object sender, System.Windows.RoutedEventArgs e)
{
bool res = false;
var rest = MessageBox.Show("确定删除数据吗?", "警告", MessageBoxButton.YesNo, MessageBoxImage.Warning);
if (rest == MessageBoxResult.Yes)
{
res = viewModel.DeleteHistoryData((DateTime)starttime.Value, (DateTime)endtime.Value);
if (res)
{
MessageBox.Show("删除数据成功！", "提示", MessageBoxButton.OK, MessageBoxImage.Information);
}
else
{
MessageBox.Show("删除数据失败！", "提示", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
}