android - notifyDataSetChanged with SQLite -

I have a simple problem that I'm sorry to ask this, but I'm looking for a solution for hours Now I can not stand it.

My app is very easy. I've got "Working in a SQLite DB", and I populate with the DB to the list:

  _dataAdapter = new function adapters (_c, _taskDAO.getTasks ()); _listTask.setAdapter (_dataAdapter);   
 gives an array of work list.  
 The problem is, when I click on the dialog to delete the task, it removes it from DB, but it is still on the screen, so I need to refresh the list view.  
  issue DialogInterface.BUTTON_NEUTRAL: _taskDAO.removeTask (1); _dataAdapter.notifyDataSetChanged (); break;   
 But this does not work, I think it is due to the fact that I am removing the work from DB but not with the adapter, but I am not completely sure. Anyway, if someone has a solution ...   
 
 
 If your adapter is an arrayaddetter or base adapter , The data is the source of your ListView, not just DB but the list you provide to the adapter.  
 You will need to update your adapter's datasheet (give it a new list) then call  
  _dataAdapter.notifyDataSetChanged ();   
 Another solution would be to recreate the adapter:  
  _dataAdapter = null; _dataAdapter = New task adapter (_c, _taskDAO.getTasks ()); _listTask.setAdapter (_dataAdapter);   
 Hope it helps