How do you replace the dataProvider of an AdvancedDataGrid? I'm reorganizing the data, and, for efficiency, I'd like to do so in an ArrayCollection that's not linked to the ADG, and then replace the dataProvider. I've had a lot of trouble getting this to work.
First I tried the obvious (the dataProvider's name is "d"): var a:ArrayCollection = new ArrayCollection(); ... this.d = a; The grid did not get updated visually, so I figured the class member and the actual dataProvider may be disconnected. So I tried: this.dataProvider = a; This time, the grid updated somewhat (the "somewhat" was probably do to unrelated bugs), but accessing the grid caused exceptions. For example, when I called isItemOpen(), an exception was thrown, saying that my dataprovider class couldn't be cast to IHeirarchicalCollectionView. So I tried this.dataProvider.source, which caused the same exception, and then this.dataProvider.source.source, which brought me back to the original state, where the grid wasn't visually updated. In all cases, I called d.refresh() and this.invalidateList() after making the changes. Any ideas?
