/// <summary>
/// 打卡号
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void DaKa_Click(object sender, RoutedEventArgs e)
{
//有问题
int a = Manager.GetKaHaoCombox(KAhao.SelectedValue.ToString());
if (a > 0)
{
MessageBox.Show("添加成功");
}
kaoQins = Manager.GetKaHaoAddStudent(KAhao.SelectedValue.ToString());
//DataGrid进行数据绑定，DataGrid的名字叫smDgStudentLsit
DataGridKC.ItemsSource = kaoQins;//把获取到的路径students赋给DataGrid表里
Manager.GetHuiFu();
}