/// <summary>
/// 选中当前选择的节点
/// </summary>
public void CheckedSelectedItem()
{
if (tv.SelectedItem != null)
{
UnCheckedAllItem();
SLTreeView2Data item = (SLTreeView2Data)tv.SelectedItem;
//if (item.IsUnitNode) return;
item.Checked = true;
}
}
/// <summary>
/// 选中改变事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void SLTreeView2Data_CheckedItemChanged(SLTreeView2Data item, SLCar car, bool isAdd)
{
if (isAdd)
{
if (!_checkedCars.ContainsKey(car))
{
_checkedCars.Add(car, item);
}
}
else
{
if (_checkedCars.ContainsKey(car))
{
_checkedCars.Remove(car);
}
}
}
/// <summary>
/// 选择改变事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void tv_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs <object> e)
{
SLTreeView2Data item = e.NewValue as SLTreeView2Data;
if (item != null)
{
if (SelectedCar == item.Car)
{
return;
}
SelectedCar = item.Car;
lastClickTime = DateTime.MinValue;
if (SelectedCarChanged != null)
{
SelectedCarChanged(SelectedCar);
}
}
}
/// <summary>
/// 展开车辆
/// </summary>
/// <param name="car"></param>
public void ExpandCar(SLCar car)
{
if (_tvScrollViewer == null)
{
_tvScrollViewer = tv.GetScrollHost();
}
SLTreeView2Data data = _rootUnitData.GetTreeViewDataByCar(car);
if (data != null)
{
var datas = data.GetTreeViewDataParents(false);
if (datas.Any())
{
tv.ExpandPath(datas);
}
tv.SelectItem(data);
if (tv.SelectedItem == null || tv.SelectedItem != data)
{
DispatcherTimer timer = new DispatcherTimer();
timer.Tick += (sender, args) =>
{
if (tv.SelectedItem != null && tv.SelectedItem == data)
{
_tvScrollViewer.ScrollIntoView(tv.GetSelectedContainer());
timer.Stop();
timer = null;
}
else
{
tv.SelectItem(data);
}
};
timer.Interval = new TimeSpan(0, 0, 0, 0, 300);
timer.Start();
}
else
{
_tvScrollViewer.ScrollIntoView(tv.GetSelectedContainer());
}
}
}
public SLTreeView2()
{
InitializeComponent();
_rootUnitData = SLTreeView2Data.CreateRootTreeViewItem();
InitEvent();
}
