public void delBH(BaiHat m) { if (this.DSBaiHat.ContainsKey(m.MaBH) == true) { this.DSBaiHat.Remove(m.MaBH, out m); } }
public void addBH(BaiHat m) { if (this.DSBaiHat.ContainsKey(m.MaBH) == false) { this.DSBaiHat.Add(m.MaBH, m); m.Nhom = this; } }