向LINQ联接添加条件

Question

I'm working with the following linq query:

  var docList = from c in container.DocumentDeliveryPreferences 
                            join o in container.Documents on c.DocumentId equals o.DocumentId
                            select new { o.Name, o.DocumentType, c.CustomerId };

How can I modify this to select only Documents where c.CustomerId equals X(some paramenter)?

Answer 1

You could try something the following:

 var docList = from c in container.DocumentDeliveryPreferences 
               join o in container.Documents 
               on c.DocumentId equals o.DocumentId
               where c.CustomerId == X
               select new { o.Name, o.DocumentType, c.CustomerId };

where X is your parameter.