This code places two Elementary dayselector widgets on a window, each of them exemplifying the different widget styles.
The first of them is the dayselector in default style:
As you see, the default style displays the weekdays starting from Sunday.
One can select/unselect a day just by clicking on the day object. The selection toggles once it is being pressed.
For showing weekdays starting from Monday, see the second dayselector:
The following code exemplifies the selection APIs of Dayselector:
See the full example, whose window should look like this picture:
See the full source code for this example.