Junk control datepicker

Datepicker is a very junk control.

When you modify the date using the direct input instead of fine-tuning method, you will find that the ondatechanged method cannot be triggered at all! That is to say, the time of the control cannot be modified by directly inputting.

It seems that only datepickerdialog or timepickerdialog is used.

However, pay attention to the use of timepickerdialog in the 24-hour format. If you do not pay attention to it, it will lead to the opposite time between the morning time and the afternoon time.