Why doesn't a List update it's display when you change the dataprovider Array?

Question

Hi. I have a list and an array with more strings inside. If i
remove some of the strings from the array and add some new strings
then the list display doesn't update. How can i force the list to
update?
List1.dataProvider = Array1;
Array1.pop();
Array1.push("test");
List Update??????

Answer 1

Hi MaxMuld,
Because it has to be ArrayCollection, not the Array.
Documentation about Datagrid.dataProvider says that Array as
provider will be converted to ArrayCollection. And ArrayCollection
performs all the notifications if you add/delete items in it.
If you still want to use Array you should do the following:
var ar= new Array();
ar.push(x)
grid.dataProvider = ar;
grid.dataProvider = new Array();
ar.pop();
grid.dataProvider = ar;
But this is very inefficient.
Dmitri.