Datatableeditor link enable input only if selected

Question

I have a question as to how to perform this procedure, I used the Datatableeditor and Ajax to achieve this modal.

I need the calendar tied to the Training,

Ex: Lecture -- displays the calendars for this training.

Data from the "Calendar" field comes from Ajax after selecting "Training"

but only after I choose the training, that it will enable the calendar field with the matching result.