protected override void PerformDrillDown(IEnumerable <object> itemsSource)
{
if (Current != null)
{
var currentGroup = Current as CollectionViewGroup;
History.Push(
new DrillDownHistory()
{
DrillDownPath = _drillDownPathQueue.ToArray(),
Name = currentGroup != null ? currentGroup.Name.ToString() : (Current as CollectionViewWrapper).Name,
Path = _currentPath,
Parent = Parent,
View = Current,
}
);
}
Parent = Current;
var view = CollectionViewSource.GetDefaultView(itemsSource);
view.GroupDescriptions.Add(new PropertyGroupDescription(_currentPath));
Current = new CollectionViewWrapper {
View = view
};
ChartView = view.Groups.ToList(); DrillDownLevel++;
}
public override void Refresh()
{
DrillDownLevel = 0;
History = new Stack <DrillDownHistory>();
_drillDownPathQueue = new Queue <string>(DrillDownPath.Split(','));
GroupNames = _drillDownPathQueue.Count > 1 ? DrillDownPath.Split(',').ToList() : GroupNames;
var view = CollectionViewSource.GetDefaultView(SourceCollection);
view.GroupDescriptions.Clear();
foreach (var path in _drillDownPathQueue)
{
view.GroupDescriptions.Add(new PropertyGroupDescription(path));
}
_currentPath = _drillDownPathQueue.Dequeue();
Current = new CollectionViewWrapper {
Name = GroupNames[0], View = view
};
ChartView = view.Groups.ToList();
OnAfterDrill(_currentPath, DrillDownLevel, true);
}
