private static CollectionViewGroup GetCollectionViewGroupHelper(DataGridContext dataGridContext, ObservableCollection <GroupDescription> groupDescriptions, object item, int groupLevel) { if (item == null) { return(null); } int levelOfRecursion = groupDescriptions.Count - groupLevel - 1; CollectionViewGroup retval = dataGridContext.GetParentGroupFromItemCore(item, true); if (retval == null) { return(null); } for (int i = 0; i < levelOfRecursion; i++) { retval = dataGridContext.GetParentGroupFromItemCore(retval, true) as CollectionViewGroup; if (retval == null) { return(null); } } return(retval); }
private static CollectionViewGroup GetCollectionViewGroupHelper( DataGridContext dataGridContext, ObservableCollection<GroupDescription> groupDescriptions, object item, int groupLevel ) { if( item == null ) return null; int levelOfRecursion = groupDescriptions.Count - groupLevel - 1; CollectionViewGroup retval = dataGridContext.GetParentGroupFromItemCore( item, true ); if( retval == null ) return null; for( int i = 0; i < levelOfRecursion; i++ ) { retval = dataGridContext.GetParentGroupFromItemCore( retval, true ) as CollectionViewGroup; if( retval == null ) return null; } return retval; }