private void OnNext(object obj)
{
if (obj.ToString() == "Next")
{
click += 1;
if (ChartViewModel.Item == null)
{
if (CurrentItem != null)
{
((CurrentItem as OrgNodeViewModel).Content as Employee).IsFocus = NodeFocusState.Normal;
}
if (PreviousItem != null)
{
((PreviousItem as OrgNodeViewModel).Content as Employee).IsFocus = NodeFocusState.Normal;
}
ChartViewModel.StartSearch();
ChartViewModel.Item = ChartViewModel.Searchview.SearchResult.GetEnumerator();
MoveNext();
previousstack = new Stack <OrgNodeViewModel>();
}
else
{
PreviousItem = CurrentItem;
if (PreviousItem != null)
{
((PreviousItem as OrgNodeViewModel).Content as Employee).IsFocus = NodeFocusState.Normal;
}
if (PreviousItem != null && previousstack != null)
{
((PreviousItem as OrgNodeViewModel).Content as Employee).IsFocus = NodeFocusState.Normal;
if (!previousstack.Contains((PreviousItem as OrgNodeViewModel)))
{
(previousstack as Stack <OrgNodeViewModel>).Push((PreviousItem as OrgNodeViewModel));
}
}
MoveNext();
if (CurrentItem == null)
{
ChartViewModel.Item.Reset();
MoveNext();
}
}
}
else if (obj.ToString() == "Previous")
{
if (previousstack == null)
{
previousstack = new Stack <OrgNodeViewModel>();
foreach (var item in ChartViewModel.Searchview.SearchResult)
{
previousstack.Push(item as OrgNodeViewModel);
}
}
if (previousstack != null && previousstack.Count > 0)
{
if (CurrentItem != null)
{
((CurrentItem as OrgNodeViewModel).Content as Employee).IsFocus = NodeFocusState.Normal;
}
if (previous == null)
{
previous = previousstack.GetEnumerator();
MovePrevious();
}
else
{
PreviousItem = previous.Current;
if (previous.Current != null)
{
if (previousstack.Last <OrgNodeViewModel>() == previous.Current)
{
((PreviousItem as OrgNodeViewModel).Content as Employee).IsFocus = NodeFocusState.Normal;
previous.Reset();
}
else
{
((PreviousItem as OrgNodeViewModel).Content as Employee).IsFocus = NodeFocusState.Normal;
}
}
else
{
previous.Reset();
}
MovePrevious();
}
}
}
}
