title: Build query string for System.Net.HttpClient get
body: <p>If I wish to submit a http get request using System.Net.HttpClient there seems to be no api to add parameters, is this correct? </p>
  
  <p>Is there any simple api available to build the query string that doesn't involve building a name value collection and url encoding those and then finally concatenating them?
  I was hoping to use something like RestSharp's api (i.e AddParameter(..))</p>