public ValueDictionary Add(ValueDictionary item)
{
if (item == null)
{
var col = new ValueDictionary(this);
col.RemoveCollection(i => i.Value?.Option == ValueOption.Exclude);
return(col);
}
var newCollection = new ValueDictionary(this.Where(i => i.Value?.Option == ValueOption.Include).ToDictionary(k => k.Key, k => k.Value));
if (!item.Any())
{
return(newCollection);
}
foreach (var key in item.Keys)
{
var value = item[key];
if (value == null)
{
continue;
}
if (newCollection.TryGetValue(key, out var existingValue))
{
newCollection.Remove(key);
if (value.Option == ValueOption.Include)
{
newCollection.Add(key, value);
}
}
else
{
newCollection.Add(key, value);
}
}
return(newCollection);
}
public ValueDictionaryIndexed(ValueDictionary items) => Items = items;