I have a grid with several columns - so many that they cannot all appear at once. Users are allow to reorder the columns as they wish. If my grid is set to FrozencolumnsCount=0, then when they drag a column to the edge of the grid, the grid starts to horizontally scroll so that they can see additional columns and drop their column in the desired location.

However if I set FrozenColumnsCount=1, then when they drag a column to the edge of the grid, the grid does not horizontally scroll.