private void FixItemList()
{
// Somehow item list got messed up and items are not unique anymore
var duplicates = ObservableItems.GroupBy(x => x.ItemId).Where(g => g.Count() > 1)
.Select(y => y);
foreach (var duplicateGroup in duplicates)
{
var duplicate = duplicateGroup.First();
ObservableItems.Remove(duplicate);
}
}
public virtual void RemoveItem(WriteoffItem item)
{
ObservableItems.Remove(item);
}