ASP.NET: URI handling

Question

I\'m writing a method which, let\'s say, given 1 and hello should return http://something.com/?something=1&hello=en.

I

Answer 1

As far I know nothing here. So everybody has its own implementation.

Example from LinqToTwitter.

    internal static string BuildQueryString(IEnumerable> parameters)
    {
        if (parameters == null)
        {
            throw new ArgumentNullException("parameters");
        }

        StringBuilder builder = new StringBuilder();
        foreach (var pair in parameters.Where(p => !string.IsNullOrEmpty(p.Value)))
        {
            if (builder.Length > 0)
            {
                builder.Append("&");
            }

            builder.Append(Uri.EscapeDataString(pair.Key));
            builder.Append("=");
            builder.Append(Uri.EscapeDataString(pair.Value));
        }

        return builder.ToString();
    }

UPDATE:

You can also create extension method:

public static UriBuilder AddArgument(this UriBuilder builder, string key, string value)
{
 #region Contract

 Contract.Requires(builder != null);
 Contract.Requires(key != null);
 Contract.Requires(value != null);

 #endregion

 var query = builder.Query;

 if (query.Length > 0)
 {
      query = query.Substring(1) + "&";
 } 

 query += Uri.EscapeDataString(key) + "="
      + Uri.EscapeDataString(value);

 builder.Query = query;

 return builder;
}

And usage:

var b = new UriBuilder();
b.AddArgument("test", "test");

Please note that everything here is untested.