mvc使用linq to sql進行sum統計遇到查詢為null的問題
mvc linq to sql,linq to entity,sum,null 昨天寫了段sum的統計語句, decimal sums sums = ( from fac in db.Apply ...
mvc linq to sql,linq to entity,sum,null 昨天寫了段sum的統計語句, decimal sums sums = ( from fac in db.Apply ...