using System.Collections.Generic;

using System.Collections.Specialized;

namespace SiteServer.Utils

{

public class LowerNameValueCollection

{

private readonly NameValueCollection _nvcLower;

public LowerNameValueCollection()

{

Keys = new List<string>();

_nvcLower = new NameValueCollection();

}

public void Set(string name, string value)

{

if (string.IsNullOrEmpty(name)) return;

_nvcLower.Set(name.ToLower(), value);

if (!Keys.Contains(name))

{

Keys.Add(name);

}

}

public string Get(string name)

{

return string.IsNullOrEmpty(name) ? null : _nvcLower.Get(name.ToLower());

}

public void Remove(string name)

{

if (string.IsNullOrEmpty(name)) return;

_nvcLower.Remove(name.ToLower());

Keys.Remove(name);

}

public List<string> Keys { get; }

public int Count => Keys.Count;

}

}