How do update an item in an ObservableCollection?

Question

I have and ObservableCollection but for some reason this code does not work.

 private void UpdateChildrenInClass()
    {
        var item = ChildrenInClass.FirstOrDefault(i => i.Name == CurrentChild.Name);
        if (item != null)
        {
            item = CurrentChild;

        }
    }

item displays the currentChild properties but if you look In ChidrenInClass the item properties have not been updated.

Answer 1

问题是项目指向我要更新的ObservableCollection中的对象，但随后我将项目设置为指向另一个对象（CurrentChild）