public DependencyCollectionViewGroupingManagerBase(DependencyCollectionView collectionView)
{
CollectionView = collectionView;
var binding = new Binding
{
Path = new PropertyPath(nameof(collectionView.IncrementalLoader)),
Source = CollectionView
};
BindingOperations.SetBinding(this, IncrementalLoaderProperty, binding);
}
public DependencyCollectionViewGroup(object groupObject, DependencyCollectionView parentView)
{
Group = groupObject;
var groupItems = new DependencyCollectionView();
GroupItems = groupItems;
ParentView = parentView;
var loader = new DependencyCollectionViewProxyIncrementalLoader()
{
InnerLoader = parentView.IncrementalLoader
};
groupItems.IncrementalLoader = loader;
}
private void InitCollectionViewGroup(DependencyCollectionView view, int count)
{
if (view.CollectionGroups?.Count != count)
{
view.CollectionGroups.Clear();
for (int i = 0; i < count; i++)
{
var g = new DependencyCollectionViewGroup(i, view);
view.CollectionGroups.Add(g);
}
if ((view.CollectionGroups?.Count ?? 0) != 0)
{
foreach (var item in view)
{
this.TryAddItemToGroup(item);
}
}
}
}
public SelfServiceDependencyCollectionViewGroupBase(object groupObject, DependencyCollectionView parentView)
: base(groupObject, parentView)
{
}
public SelfServiceDependencyDelegateCollectionViewGroup(object groupObject, DependencyCollectionView parentView, Func <ICollectionViewGroup, object, bool> tryAddItemToGroup, Func <ICollectionViewGroup, object, bool> tryRemoveItemFromGroup)
: base(groupObject, parentView)
{
_OnAddingItemToGroup = tryAddItemToGroup;
_OnRemovingingItemRemoveGroup = tryRemoveItemFromGroup;
}