/// <summary>
/// Construct the QueryString object from an existing NameValueCollection
/// </summary>
/// <param name="nvc">the NameValueCollection</param>
/// <param name="encoding">The encoding, or lack of one, that already exists for the passed NameValueCollection</param>
/// <remarks>If there is a URL set the URL property independently and don't
/// forget to set IsHTTP too. Encoding should be used to set the pre-existing encoding for the passed querystring.
/// Note that this is not the encoding to which you want the data converted but the encoding that the data is already in.</remarks>
public QueryString(NameValueCollection nvc, QueryStringEncoding encoding)
{
this.encoding = encoding;
foreach (string key in nvc.Keys)
{
base.Add(key, nvc[key]);
}
}
/// <summary>
/// Construct using string having key=value pair format with or without prefixing URL
/// </summary>
/// <param name="queryString">the querystring</param>
/// <param name="encoding">The encoding, or lack of one, that already exists for the passed NameValueCollection</param>
/// <remarks>Encoding should be used to set the pre-existing encoding for the passed querystring.
/// Note that this is not the encoding to which you want the data converted but the encoding that the data is already in.</remarks>
public QueryString(string queryString, QueryStringEncoding encoding)
{
this.queryString = queryString.Trim();
this.IsHTTPS = false;
this.url = QueryString.ParseUrl(this.queryString, ref this.IsHTTPS);
PopulateCollection();
this.encoding = encoding;
}
private void Decode(QueryStringEncoding encoding)
{
for (int i = 0; i < this.Keys.Count; i++)
{
string newval = null;
if (encoding == QueryStringEncoding.Html)
{
newval = HttpUtility.HtmlDecode(this[Keys[i]]);
}
else
{
newval = HttpUtility.UrlDecode(this[Keys[i]]);
}
this[Keys[i]] = newval;
}
}