我的代碼如下： var contactGroups = context.ContactGroups.Where(cg => cg.ContactID == contact.ID);
var MyContactGroups = from cg in context.ContactGroups
where cg.Contact == contact.ID
select new
Total ef新手問題 - 給定這個簡單的實體模型，我將如何設置一個簡單的查詢來顯示GridView中的所有客戶端？或者在給定範圍內顯示所有帶有zip的客戶端？ public class scheduleContext : DbContext
{
public DbSet<client> clients { get; set; }
public DbSet<appt> ap
錯誤： Unable to update the EntitySet 'ClientFeedBack' because it has a DefiningQuery and no <InsertFunction> element exists in the <ModificationFunctionMapping> element to support the current operation.