private void BtnNew_Click(object sender, RoutedEventArgs e)
        {
            WinJobAddOrEdit win = new WinJobAddOrEdit(null);

            win.ShowDialog();
            Query();
        }
 private void BtnEdit_Click(object sender, RoutedEventArgs e)
 {
     if (DGMain.SelectedItem == null || DGMain.SelectedItems.Count > 1)
     {
         MessageBox.Show("请选中一条数据");
     }
     else
     {
         WinJobAddOrEdit win = new WinJobAddOrEdit(((JobEntity)DGMain.SelectedItem).Id);
         win.ShowDialog();
         Query();
     }
 }