The ImpliedOrderGridBehavior enables you to automatically assign a Grid row and column to a view based on the order the view is added to the Grid. You only need to setup the row and column definitions and then add children to the Grid. You may still assign RowSpan and ColumnSpan to views and their values will be taken into account when assigning a row and column to a view. If a view has a user defined row or column value it will be honored.