listbox取子控件

for (int i = 0; i < selectListView.Items.Count; i++)
              {
                  var selectedPersoncc = listView.Items[i] as XmTypeZD;


                  //取子控件
                  ListViewItem lviss = this.selectListView.ItemContainerGenerator.ContainerFromItem(selectedPersoncc) as ListViewItem;
                  Image cbss = challstate.FindVisualChild<Image>(lviss);


                  if (cbss != null)
                  {//...do something
                      cbss.Visibility = Visibility.Hidden;

                  }
              }