Checkbox element :: Front-end Addition

[amitfalana]

Dear Members,
In my application, for one of the checkboxes, the user needs to select a date and must be able to add some dates from the frontend.
I am able to allow the user to add data from the frontend, but how I restrict the user to only add a date value?
Also, can I show the calendar picker instead of the standard field input?

 

[juuser]

I think you could add php element validation to your element and check that the entry is in proper date format.

If you want to have a date picker, you could add additional date element to your form and hide the original one from form view. And when this element is updated (date selected) you could transfer this date value to your original element with element javascript on change.