C#: Convert Dictionary<> to NameValueCollection

Question

How can I convert a Dictionary to a NameValueCollection?

The existing functionality of our project returns an old-fashion

Answer 1

try this Extension to Dictionary I hope it's what you wanted:

public static class DictionaryExtensions
{
    public static NameValueCollection ToNameValueCollection(this IDictionary dictionary)
    {
        var collection = new NameValueCollection();
        foreach(var pair in dictionary)
            collection.Add(pair.Key, pair.Value.ToString());
        return collection;
    }
}

use like

var nvc = myDict.ToNameValueCollection();

note: I have constrained the key to be string because I didn't want to overgeneralize - of course you can change this with a generic type and .ToString() for the key too.