NameValueCollection
is case sensitive for the keys, HttpValueCollection
isn't. Also HttpValueCollection
is an internal class that derives from NameValueCollection
that you are never supposed to use directly in your code. Another property of HttpValueCollection
is that it automatically url encodes values when you add them to this collection.
Here's how to use the HttpValueCollection
class:
class Program
{
static void Main()
{
// returns an implementation of NameValueCollection
// which in fact is HttpValueCollection
var values = HttpUtility.ParseQueryString(string.Empty);
values["param1"] = "v&=+alue1";
values["param2"] = "value2";*
// prints "param1=v%26%3d%2balue1¶m2=value2"
Console.WriteLine(values.ToString());
}
}
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