This chapter explores the
grid geometry manager that positions widgets on a grid that automatically adjusts its size. Grid was added in Tk 4.1.
grid geometry manager arranges widgets on a grid with variable-sized rows and columns. You specify the rows and columns occupied by each widget, and the grid is adjusted to accommodate all the widgets it contains. This is ideal for creating table-like layouts. The manager also has sophisticated facilities for controlling row and column sizes and the dynamic resize behavior. By introducing subframes with grids of their own, you can create arbitrary layouts.