private void ItemDictTypes_SelectionChangedEvent(int oldSelection, int newSelection)
{
ItemDict.Clear();
ItemDictVM <object> itdvm = new ItemDictVM <object>(ParentVM, ItemDictTypes.SelectedKey);
itdvm.PropertyChanged += Itdvm_PropertyChanged;
ItemDict.Add(itdvm);
}
private void Itdvm_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
foreach (var item in ItemDict.ToList())
{
if (string.IsNullOrWhiteSpace(item.Formula) && ItemDict.IndexOf(item) < ItemDict.Count - 1)
{
ItemDict.Remove(item);
}
}
if (!string.IsNullOrWhiteSpace(ItemDict.Last().Formula))
{
ItemDictVM <object> itdvm = new ItemDictVM <object>(ParentVM, ItemDictTypes.SelectedKey);
itdvm.PropertyChanged += Itdvm_PropertyChanged;
ItemDict.Add(itdvm);
}
}
