when using the calendar attached to an input field, manuall triggered show doesn’t work. You may use the actual downloadable suite to build an example. I will prefer this situation, because attaching to an input field the framework handles the positioning of the control like a usuasl combo box in a right way, and i will open the calendar , if like the combobox, the user presses a value help button.
To click i a field is not a transparentw ay for the user.