joseftw · April 19, 2018 08:30
diff --git a/ToQueryString b/ToQueryString
 public static class NameValueCollectionExtensions {
    public static string ToQueryString(this NameValueCollection nameValueCollection) {
        return string.Join("&", nameValueCollection
 	    .AllKeys
 	    .SelectMany(key => (nameValueCollection.GetValues(key) ?? Enumerable.Empty<string>())
 	    .Select(val => string.Concat(key, "=", WebUtility.UrlEncode(val)))));
    }
 }
	public static class NameValueCollectionExtensions {
	public static string ToQueryString(this NameValueCollection nameValueCollection) {
	return string.Join("&", nameValueCollection
	.AllKeys
	.SelectMany(key => (nameValueCollection.GetValues(key) ?? Enumerable.Empty<string>())
	.Select(val => string.Concat(key, "=", WebUtility.UrlEncode(val)))));
	}
	}