private ViewRecord CreateAndCacheNewView(object collection, Appercode.UI.Data.CollectionViewSource cvs)
{
ICollectionView collectionViews = this.CreateNewView(collection);
ViewTable viewTable = this.EnsureViewTableForCollection(collection);
ViewRecord viewRecord = new ViewRecord(collectionViews);
viewTable[cvs] = viewRecord;
((IViewLifetime)collectionViews).ViewManagerData = viewTable;
this.Cleanup();
return(viewRecord);
}
private ViewTable EnsureViewTableForCollection(object collection)
{
ViewTable item = this[collection];
if (item == null)
{
item = new ViewTable();
this[collection] = item;
}
return(item);
}
internal ViewRecord GetViewRecord(object collection, Appercode.UI.Data.CollectionViewSource cvs)
{
ViewTable item = this[collection];
ViewRecord viewRecord = null;
if (item != null)
{
viewRecord = item[cvs];
if (viewRecord != null)
{
return(viewRecord);
}
}
return(this.CreateAndCacheNewView(collection, cvs));
}
private ViewTable this[object o]
{
get
{
WeakRefKey weakRefKey = new WeakRefKey(o);
WeakReference weakReference = null;
ViewTable target = null;
if (this.objectsToViewTables.TryGetValue(weakRefKey, out weakReference))
{
target = (ViewTable)weakReference.Target;
if (target == null)
{
this.objectsToViewTables.Remove(weakRefKey);
}
}
return(target);
}
set
{
WeakRefKey weakRefKey = new WeakRefKey(o);
this.objectsToViewTables[weakRefKey] = new WeakReference(value);
}
}
private ViewTable EnsureViewTableForCollection(object collection)
{
ViewTable item = this[collection];
if (item == null)
{
item = new ViewTable();
this[collection] = item;
}
return item;
}