void AddKeyValue(string key, string value)
{
key = key == null ? null : OwinConvert.UrlDecode(key);
value = value == null ? null : OwinConvert.UrlDecode(value);
if (key != "")
{
if (!_KeyValueMap.TryGetValue(key, out var existing))
{
var valueArray = value == null ? new string[0] : new string[] { value };
_KeyValueMap.Add(key, valueArray);
}
else if (value != null)
{
var newArray = new string[existing.Length + 1];
Array.Copy(existing, newArray, existing.Length);
newArray[newArray.Length - 1] = value;
_KeyValueMap[key] = newArray;
}
}
}