<PackageReference Include="System.Collections.Specialized" Version="4.3.0" />

OrderedDictionary

public class OrderedDictionary : IOrderedDictionary, IDictionary, ICollection, IEnumerable
public int Count { get; }

public bool IsReadOnly { get; }

public object this[int index] { get; set; }

public object this[object key] { get; set; }

public ICollection Keys { get; }

public ICollection Values { get; }

public OrderedDictionary()

public OrderedDictionary(int capacity)

public OrderedDictionary(IEqualityComparer comparer)

public OrderedDictionary(int capacity, IEqualityComparer comparer)

public void Add(object key, object value)

public OrderedDictionary AsReadOnly()

public void Clear()

public bool Contains(object key)

public void CopyTo(Array array, int index)

public virtual IDictionaryEnumerator GetEnumerator()

public void Insert(int index, object key, object value)

public void Remove(object key)

public void RemoveAt(int index)