What are the types of triggers and how the sequence of firing in text item

Triggers can be classified as Key Triggers, Mouse Triggers, Navigational Triggers, event triggers.

Key Triggers: Key Triggers are fired as a result of Key action. e.g. Key-next-field, Key-up, Key-Down

Mouse Triggers: Mouse Triggers are fired as a result of the mouse navigation. e.g. When-mouse-button-pressed, when-mouse-doubleclicked, etc

Navigational Triggers: These Triggers are fired as a result of Navigation. e.g.  Post-Text-item, Pre-text-item.

Event triggers: when–new-form-instance and when-new-block-instance.

We cannot call restricted procedures like go_to (‘my_block.first_item’) in the Navigational triggers but can use them in the Key-next-item.

The Difference between Key-next and Post-Text is an very important question. The key-next is fired as a result of the key action while the post text is fired as a result of the mouse movement. Key next will not fire unless there is a key event.

The sequence of firing in a text item is as follows:

    a) pre-text

    b) when_new_item

    c) key-next

    d) when_validate

    e) post_text