I have product class

class Products
{
    public int ProductID { get; set; }
    public int Quantity { get; set; }
    public string Description { get; set; }
    public decimal Price { get; set; }
    public decimal SubTotal { get; set; }
}

public List<Products> ProductsList = new List<Products>();

I have binded this "ProductList" to wpf datagrid. This datagrid shows item already in collection (before DataGrid.DataContext applied) but not showing new item added.

I am using List<> instead of ObservableCollection<> because I want to update items if user changes quantity. I don't know how to do that using ObservableCollection<>.

Some code will help

thanks