domain: client
language: javascript
class Item class
Open a new, empty record at the end of the dataset.
After a call to append, an application can enable users to enter data in the fields of the record, and can then post those changes to the item dataset using post method, and then apply them to the item database table, using apply method.
The append method
checks if item dataset is active , otherwise raises exception
if the item is a detail , checks if the master item is in edit or insert state , otherwise raises exception
if the item is not a detail checks if it is in browse state , otherwise raises exception
triggers the on_before_append event handler if one is defined for the item
open a new, empty record at the end of the dataset
puts the item into insert state
triggers the on_after_append event handler if one is defined for the item.
updates data-aware controls