Left Join Linq to Entity's Vb.net -

i can't figure out linq entity query syntax. problem if value of calls table null noting comes up, want make left join 'all' rows calls table.

i tried group can't figure out correct way write it.

dim ticketquery objectquery = c in endata.customer _                                          join t in endata.calls on t.customerid equals c.customerid _                                          join status in endata.lists on t.status equals status.listvalue _                                          join project in endata.lists on t.project equals project.listvalue _                                          join priorty in endata.lists on t.priority equals priorty.listvalue _                                          c.status > -1 , t.status > -1 , status.listtype = 1 , project.listtype = 3 , priorty.listtype = 2 _          select new {c.custname, t.callid, t.calldate, t.calltime, t.description, key .status = status.listtext, key .project = project.listtext, t.datemodified, key .priority = priorty.listtext} 

how can fix that?

similar question: linq sql: multiple left outer joins

microsoft documentation: http://msdn.microsoft.com/en-us/library/bb918093.aspx#y916

linq examples from: http://msdn.microsoft.com/en-us/vbasic/bb737909

left outer join so-called outer join can expressed group join. left outer joinis cross join, except left hand side elements included @ least once, if don't match right hand side elements. note how vegetables shows in output though has no matching products.

public sub linq105()     dim categories() = {"beverages", "condiments", "vegetables", "dairy products", "seafood"}  dim productlist = getproductlist()  dim query = c in categories _             group join p in productlist on c equals p.category group _             p in group.defaultifempty() _             select category = c, productname = if(p nothing, "(no products)", p.productname)  each v in query     console.writeline(v.productname + ": " + v.category) next end sub