Question

For some reason I am getting a “Query body must end with a select clause or a group clause” compile error on what seems to be a simple compound conditional in the following linq-to-sql query:

using (var db = new CaremcDB(Database.Conn))
{
 var taxids = from p in db.ProviderTaxIds 
      join c in db.CustomerProviders
      on customerId equals c.CustomerId && p.Id equals c.ProviderId
      select p;

 return taxids.ToList<ProviderTaxIds>();
}

It chokes on the “&& p.Id equals c.ProviderId” clause for some reason.

Answer 1

It appears that customerId is an external input to the query. Move that to a where clause.

...
on p.Id equals c.ProviderId  
where customerId == c.CustomerId
select p;