string strBirthError = "";
                foreach (DataRow dr in dtInfo.Rows)
                {
                    card = new PatientNoBedCard();
                    //選中卡片設置效果在自定義控件中聲明了無返回值的泛型委托Action 將PatientNoBedCard作為泛型的類型參數然後在這使用Lambda表達式來初始化委托
                    card.SelectChanged = new
 
 Action<PatientNoBedCard>(newCard =>
                    {
                        PatientNoBedCard oldbed = this.pnlPatientCards.Controls.Cast<PatientNoBedCard>().ToList().Find(it => it.IsChecked);
                        if (oldbed != null)
                        {
                            oldbed.IsChecked 
 
= false;
                        }
                        newCard.IsChecked = true;
                    });
                   card.ShowEnterOffice = new Action<PatientNoBedCard>(ShowOfficeBed);//聲明和初始化委托方法1
                    //card.ShowEnterOffice = ShowOfficeBed;//C# 2.0提出了快捷語法方法2
                    
 
//card.ShowEnterOffice += ShowOfficeBed;//方法3 添加委托方法
                    //card.ShowEnterOffice = delegate(PatientNoBedCard card1) { };//方法4 使用匿名方法
                    //card.ShowEnterOffice = (newCard => { }); //方法5 使用Lambda表達式
 
                    //設置控件對應屬性
                    //card.LevelHl = dr["TENDLEVEL"].ToString();
                    card.InHosID = dr["INHOSID"].ToString();
                    card.YBLX = dr["CHARGEKIND"].ToString();
                    card.Sex = dr["SEX"].ToString();
                    card.PatientName = dr["PATIENTNAME"].ToString();
                    ……
                }

委托初始化方法實例