Merge two ArrayCollections

[mark goldin]

I am trying to do something like this:

_columns = new ArrayCollection(_columns1.source, _columns2.source);

In order to create:

_columns [0] -> {visible: "true", name: "name1", visible: "false", name:
"name2"}

_columns1 -> {visible: "true", name: "name1"}
_columns2 -> {visible: "false", name: "name2"}

_columns will be shown in the grids.

Thanks