public static void Update(Model.KHACHHANG item, string id)
        {
            Model.KHACHHANG getdt = Model.DataProvider.Ins.DB.KHACHHANGs.Where(x => x.ma_khachhang == id).SingleOrDefault();
            getdt.ten_khachhang = item.ten_khachhang;
            getdt.sodienthoai   = item.sodienthoai;
            getdt.diachi        = item.diachi;

            Model.DataProvider.Ins.DB.SaveChanges();
        }
        public Khachhang_ViewModel()
        {
            List       = new ObservableCollection <Model.KHACHHANG>(Model.DataProvider.Ins.DB.KHACHHANGs.Where(x => x.IsDeleted == false));
            DeleteList = new ObservableCollection <Model.KHACHHANG>();

            Active = false;
            IsOpen = false;

            Active_Command = new RelayCommand <object>(p =>
            {
                if (Active == false)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                Active = false;
            });

            CloseDialog_Command = new RelayCommand <object>(p =>
            {
                return(true);
            }, p =>
            {
                IsOpen = false;
            });

            Load_Command = new RelayCommand <object>(p =>
            {
                return(true);
            }, p =>
            {
                List       = new ObservableCollection <Model.KHACHHANG>(Model.DataProvider.Ins.DB.KHACHHANGs.Where(x => x.IsDeleted == false));
                DeleteList = new ObservableCollection <Model.KHACHHANG>();

                Active = false;
                IsOpen = false;
            });

            #region Phan them
            Insert_Command = new RelayCommand <object>(p =>
            {
                if (string.IsNullOrEmpty(Tenkhachhang) || string.IsNullOrEmpty(Sodienthoai) || string.IsNullOrEmpty(Diachi))
                {
                    return(false);
                }

                long i = 0;
                if (!long.TryParse(Sodienthoai, out i))
                {
                    return(false);
                }

                var check = Model.DataProvider.Ins.DB.KHACHHANGs.Where(x => x.ten_khachhang == Tenkhachhang);
                if (check == null || check.Count() != 0)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                SelectedItem = null;

                Model.KHACHHANG newItem = new Model.KHACHHANG()
                {
                    ma_khachhang  = Guid.NewGuid().ToString(),
                    ten_khachhang = Tenkhachhang,
                    diachi        = Diachi,
                    sodienthoai   = Sodienthoai,
                    IsDeleted     = false
                };

                Model.Khachhang_Service.Insert(newItem);

                List.Insert(0, newItem);
                SelectedItem = newItem;

                Active  = true;
                Message = "Thêm mới thành công !!!";
            });
            #endregion

            #region Phan sua
            Update_Command = new RelayCommand <object>(p =>
            {
                if (SelectedItem == null)
                {
                    return(false);
                }

                long i = 0;
                if (!long.TryParse(Sodienthoai, out i))
                {
                    return(false);
                }

                if (string.IsNullOrEmpty(Tenkhachhang) || string.IsNullOrEmpty(Sodienthoai) || string.IsNullOrEmpty(Diachi))
                {
                    return(false);
                }

                var check = Model.DataProvider.Ins.DB.KHACHHANGs.Where(x => x.ten_khachhang == Tenkhachhang && x.diachi == Diachi && x.sodienthoai == Sodienthoai);
                if (check == null || check.Count() != 0)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                Model.KHACHHANG UpdateItem = new Model.KHACHHANG()
                {
                    ten_khachhang = Tenkhachhang,
                    sodienthoai   = Sodienthoai,
                    diachi        = Diachi
                };
                Model.Khachhang_Service.Update(UpdateItem, Makhachhang);

                for (int i = 0; i < List.Count(); i++)
                {
                    if (List[i] == SelectedItem)
                    {
                        List[i] = new Model.KHACHHANG()
                        {
                            ma_khachhang  = Makhachhang,
                            ten_khachhang = Tenkhachhang,
                            diachi        = Diachi,
                            sodienthoai   = Sodienthoai
                        };
                        break;
                    }
                }
                //MessageBox.Show("Chỉnh sửa thành công", "THÔNG BÁO");

                SelectedItem = null;
                Tenkhachhang = "";
                Sodienthoai  = "";
                Diachi       = "";

                Active  = true;
                Message = "Chỉnh sửa thành công !!!";
            });
            #endregion

            #region Phan xoa

            DeleteShow_Command = new RelayCommand <object>(p =>
            {
                if (DeleteList.Count() == 0)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                IsOpen  = true;
                Content = "  Xóa các bản ghi được chọn ???";
            });


            AddDeleteList_Command = new RelayCommand <CheckBox>(p =>
            {
                return(true);
            }, p =>
            {
                DeleteList.Add(List.Where(x => x.ma_khachhang == p.Uid.ToString()).SingleOrDefault());
            });

            RemoveDeleteList_Command = new RelayCommand <CheckBox>(p =>
            {
                return(true);
            }, p =>
            {
                DeleteList.Remove(List.Where(x => x.ma_khachhang == p.Uid.ToString()).SingleOrDefault());
            });

            Delete_Command = new RelayCommand <object>(p =>
            {
                if (DeleteList.Count() == 0)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                RemoveIteminDb();
                RemoveIteminList();


                DeleteList   = new ObservableCollection <Model.KHACHHANG>();
                IsOpen       = false;
                SelectedItem = null;
            });
            #endregion

            #region Tao moi
            Reset_Command = new RelayCommand <object>(p =>
            {
                return(true);
            }, p =>
            {
                SelectedItem = null;
                Tenkhachhang = "";
                Diachi       = "";
                Sodienthoai  = "";
            });
            #endregion

            #region Phan sap xep

            Sort_Command = new RelayCommand <object>(p =>
            {
                if (List.Count() == 0)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                ObservableCollection <Model.KHACHHANG> chkList = new ObservableCollection <Model.KHACHHANG>(List.OrderByDescending(x => x.ten_khachhang));

                if (List[0] == chkList[0])
                {
                    List = new ObservableCollection <Model.KHACHHANG>(List.OrderBy(x => x.ten_khachhang));
                }
                else
                {
                    List = new ObservableCollection <Model.KHACHHANG>(chkList);
                }
            });

            SortbyDiachi_Command = new RelayCommand <object>(p =>
            {
                if (List.Count() == 0)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                ObservableCollection <Model.KHACHHANG> chkList = new ObservableCollection <Model.KHACHHANG>(List.OrderByDescending(x => x.diachi));

                if (List[0] == chkList[0])
                {
                    List = new ObservableCollection <Model.KHACHHANG>(List.OrderBy(x => x.diachi));
                }
                else
                {
                    List = new ObservableCollection <Model.KHACHHANG>(chkList);
                }
            });

            #endregion
        }
 public static void Delete(Model.KHACHHANG item)
 {
     Model.DataProvider.Ins.DB.KHACHHANGs.Remove(item);
 }
 public static void Insert(Model.KHACHHANG item)
 {
     Model.DataProvider.Ins.DB.KHACHHANGs.Add(item);
     Model.DataProvider.Ins.DB.SaveChanges();
 }