private void AddToDictionary(ref ItemData itemData)
{
string key = itemData.NormalizedItemValue;
if (!_dictionaryBuilder.TryGetValue(key, out var dictionaryValue))
{
dictionaryValue = new ItemDataCollectionValue <I>(itemData.Item);
}
else
{
dictionaryValue.Add(itemData.Item);
}
_dictionaryBuilder[key] = dictionaryValue;
}
public ItemData this[int index]
{
get
{
return(_listBuilder[index]);
}
set
{
// Update the dictionary if it exists.
if (_dictionaryBuilder is not null)
{
ItemData oldItemData = _listBuilder[index];
string oldNormalizedValue = oldItemData.NormalizedItemValue;
string newNormalizedValue = value.NormalizedItemValue;
if (!string.Equals(oldNormalizedValue, newNormalizedValue, StringComparison.OrdinalIgnoreCase))
{
// Normalized values are different - delete from the old entry and add to the new entry.
ItemDataCollectionValue <I> oldDictionaryEntry = _dictionaryBuilder[oldNormalizedValue];
oldDictionaryEntry.Delete(oldItemData.Item);
if (oldDictionaryEntry.IsEmpty)
{
_dictionaryBuilder.Remove(oldNormalizedValue);
}
else
{
_dictionaryBuilder[oldNormalizedValue] = oldDictionaryEntry;
}
ItemDataCollectionValue <I> newDictionaryEntry = _dictionaryBuilder[newNormalizedValue];
newDictionaryEntry.Add(value.Item);
_dictionaryBuilder[newNormalizedValue] = newDictionaryEntry;
}
else
{
// Normalized values are the same - replace the item in the entry.
ItemDataCollectionValue <I> dictionaryEntry = _dictionaryBuilder[newNormalizedValue];
dictionaryEntry.Replace(oldItemData.Item, value.Item);
_dictionaryBuilder[newNormalizedValue] = dictionaryEntry;
}
}
_listBuilder[index] = value;
}
}
