private void btnQuery_Click(object sender, System.Windows.RoutedEventArgs e)
{
if (starttime.Value == null || endtime.Value == null || starttime.Value > endtime.Value)
{
MessageBox.Show("请选择正确的时间！");//应限制输入超过12小时的上班间隔
return;
}
var list = viewModel.GetHistoryData((DateTime)starttime.Value, (DateTime)endtime.Value, cmbProduct.Text);
ReportDataSource ds = new ReportDataSource("DataSet1", list);
rvProcess.LocalReport.DataSources.Clear();
rvProcess.LocalReport.DataSources.Add(ds);
rvProcess.RefreshReport();
}