When using a filter function on an AdvancedDataGrid whose dp is a
HierarchicalData object derived from an XMLCollectionList passed into
it, the dataprovider will not refresh by calling dp.refresh directly.
So I tried datagrid.dataProvider.refresh() and it works until one of the
row's criteria for filtering is changed and a subsequent filter request
occurs. It throws 2 consecutive Invalid Bookmark runtime errors (see
below). If I press 'Continue' on both errors, the filtering works
properly.
Error: Bookmark no longer valid.
at
ListCollectionViewCursor/seek()[E:\dev\3.0.x\frameworks\projects\framewo\
rk\src\mx\collections\ListCollectionView.as:2046]
at mx.collections::HierarchicalCollectionViewCursor/get
current()[C:\Work\flex\dmv_automation\projects\datavisualisation\src\mx\\
collections\HierarchicalCollectionViewCursor.as:198]
at
mx.collections::HierarchicalCollectionViewCursor/collectionChangeHandler\
()[C:\Work\flex\dmv_automation\projects\datavisualisation\src\mx\collect\
ions\HierarchicalCollectionViewCursor.as:1056]
<mx:HTTPService id="svc" url="data/notifications.xml" resultFormat="e4x"
/>
<mx:XMLListCollection id="dp" source="{svc.lastResult..category}" />
<mx:HierarchicalData id="categories" source="{dp}" />
<mx:AdvancedDataGrid id="dg" dataProvider="{categories}" ... />
public function aFilter():void{
dg.dataProvider.filterFunction = hideViewedNotifsFilterFunc;
dg.dataProvider.refresh();
// addressing dataprovider directly below does not work
//dp.filterFunction = hideViewedNotifsFilterFunc;
//dp.refresh();
}
Any ideas how to eliminate the runtime errors?
Thanks,
Jeff
