Building an Address Book > Creating the Application Functions > The doRemoveContact() Function

The doRemoveContact() Function

The doRemoveContact() function deletes a contact from both the local SharedObject and the contactListBox_lb. It is invoked by the "Remove Contact" PushButton.

The doRemoveContact() function performs the following tasks:

	Determines which contact to remove (by checking contactListBox_lb).
	Removes the contact from the local SharedObject.
	Repopulates the contact ListBox.

The complete listing for doRemoveContact() is shown below. There are no new techniques in the code. Study the comments to learn how the function works.

/*
 * Function: doRemoveContact()
 *   Desc: Removes a contact from the local shared object and
 *         from the contacts listbox.
 *   Parameters: None.
 */

function doRemoveContact () 
{
  // Retrieve the data value of the selected listbox item. This
  // will be a contact id number.
  var selectedID = contactListBox_lb.getValue();

  // Delete the selected contact.
  contactMgr.removeContact(selectedID);

  // Refill the entries in the address book.
  populateListBox();

  // Update the contact details pane (this clears the
  // pane because no item has focus in the list box).
  populateDetailsPane();
}