读取ID的信息，导致异常出现错误

Question

在C＃我的SQL实体框架6插入是返回异常

无法添加或更新子行：外键约束失败 （portaldb。Masterselection Himentory，约束 fk_masterselection history_contacts_masterid外键（MasterID） 参考Masters（ID）删除级联）

发生了例外，试图将记录列表插入数据库时​​，

try{
    List<int> masterIds =  // around 20k ID exists 
                    foreach (int id in masterIds)
                    {
                        //Add Selection History to record against the contact!
                        #region insert to ContactSelectionHistory 
                        MasterSelectionHistory dbEntry = new MasterSelectionHistory();
                        dbEntry.MasterId = id;
                        dbEntry.SelectionId = --;
                        dbEntry.DateCreated = DateTime.Now;
                        dbEntry.CreatedBy = ---;
                        context.MasterSelectionHistory.Add(dbEntry);
                        #endregion
                    }  
    
                    //Save all the db context changes
                    await context.SaveChangesAsync().ConfigureAwait(false);  //EXception is throwing from here
 }
                catch (Exception ex)
                {
                   //Can read ID causing error from ex object ?
                    throw new InvalidOperationException(ex.Message);
                }

有任何方法可以知道ID中的哪个正在引起ID中的哪个来自异常对象的问题