public static AsyncObservableCollection <T> GetItems <T>(this AsyncObservableCollection <T> collection, DummyItemType collectionType) where T : StoreItem, new()
{
AsyncObservableCollection <T> items = collection.ToCollection();
items.Sort((x, y) => x.Title.CompareTo(y.Title));
if (collectionType == DummyItemType.NoneType || collectionType == DummyItemType.AllNoneType)
{
T item = StoreItem.GetDummyItem <T>(DummyItemType.NoneType);
items.Insert(0, item);
}
if (collectionType == DummyItemType.AllType || collectionType == DummyItemType.AllNoneType)
{
T item = StoreItem.GetDummyItem <T>(DummyItemType.AllType);
items.Insert(0, item);
}
// If there are no items at all in the collection, throw an 'All' on the list
if (items.Count == 0)
{
T item = StoreItem.GetDummyItem <T>(DummyItemType.AllType);
items.Insert(0, item);
}
return(items);
}
//------------------------------------------------------------------------------------
/// <summary>
/// Returns a list of all the allowed values for the given Product Studio field. This
/// assumes that this property does not depend on the value of any other property for
/// its state.
/// </summary>
//------------------------------------------------------------------------------------
public virtual AsyncObservableCollection <AllowedValue> GetFieldAllowedValues(string propName, AllowedValue firstValue = null)
{
AsyncObservableCollection <AllowedValue> allowedValues = GetFieldAllowedValues(CreateDSItem(), propName);
if (allowedValues.Count == 0)
{
if (FieldAllowedValues.ContainsKey(propName))
{
allowedValues = FieldAllowedValues[propName];
}
}
if (firstValue != null)
{
allowedValues.Insert(0, firstValue);
}
return(allowedValues);
}