can't call superclass method

[papirosko]

According to doc there must be available method:
this._parent()

But I get "TypeError: this._parent is not a function".

By the way, can I call this method in constructor init()?

[papirosko]

this.proto.init();

this method calls superclass method, but I guess it is whong or you should update documentation (proto instead of _parent())

[kilhage]

Could you please create a test case at http://jsfiddle.net/ with the code you are trying to get to work.

Regarding this.proto.init() it does not work in all browsers. this._parent() will work in all browsers however.

[papirosko]

can't believe it. I've made almost the same page and it worked. But original
page has no _parent(). I guess it is because of js scripts conflict or
something like that. I'll continue investigation problem

[papirosko]

Wow.
If I write

var CountriesPage = FormDatatablesGridPage.extend({

init: function(gridId, gridMargin) {
this._parent(gridId, gridMargin);
this._gridId = gridId;
this._gridMargin = gridMargin;
...

everything is OK. But if i write

var CountriesPage = FormDatatablesGridPage.extend({

init: function(gridId, gridMargin) {
// this._parent(gridId, gridMargin);
this._gridId = gridId;
this._gridMargin = gridMargin;

(1st line in constructor is commented), when I can't see _parent in firebug
and so it is not working.