title: multiple core query using solrnet
body: <p>Im basically trying to achieve the following: </p>
  
  <pre><code>q=MyField0:ValueA  
  AND 
  {!join from=OtherID1 to=MainID fromIndex=Index2 v='(MyField1:ValueB)'} 
  AND 
  {!join from=OtherID2 to=MainID fromIndex=Index3 v='(MyField2:ValueC)'}
  </code></pre>
  
  <p>So I'm basically joining with two other cores. Is there any way to achieve this through SolrNet? </p>
  
  <p>I've had a look at the ExtraParams in QueryOptions but I'm not getting too far.</p>
  
  <p>I can create the seperate joins using a LocalParamsQuery object with a modified serializer but I've no idea as to how to put this all together to achieve the above.</p>
  
  <p>Any ideas?  </p>