public Data_Pemesanan(string namapemesan, string nomorhp, int berat, DateTime tglPesan, string jenis)
 {
     InitializeComponent();
     mode      = Mode.Edit;
     pelanggan = new Pelanggan
     {
         Nama                = namapemesan,
         No_Hp               = nomorhp,
         Berat_Cucian        = Convert.ToInt32(tbberat.Text),
         Jenis_Paket         = tbjenispaket.Text,
         Harga_Paket         = Convert.ToDouble(tbharga.Text),
         Harga_Total         = Convert.ToDouble(tbhargatotal.Text),
         Tanggal_Pemsanan    = Convert.ToDateTime(dateTimePicker2.Text),
         Tanggal_Pengambilan = Convert.ToDateTime(dateTimePicker1.Text),
     };
     tbnama.Text          = namapemesan;
     tbnohp.Text          = nomorhp;
     tbberat.Text         = tbberat.Text;
     tbjenispaket.Text    = tbjenispaket.Text;
     tbharga.Text         = tbharga.Text;
     tbhargatotal.Text    = tbhargatotal.Text;
     dateTimePicker2.Text = dateTimePicker2.Text;
     dateTimePicker1.Text = dateTimePicker1.Text;
     btnsimpan.Text       = "Simpan";
 }
 private void SimpanData()
 {
     if (tbnama.Text != "" && tbnohp.Text != "" && tbberat.Text != "" && tbjenispaket.Text != "" && tbharga.Text != "" && tbhargatotal.Text != "" && dateTimePicker2.Text != "" &&
         dateTimePicker1.Text != "")
     {
         using (var db = new PelangganModel())
         {
             pelanggan = new Pelanggan
             {
                 Nama                = tbnama.Text,
                 No_Hp               = tbnohp.Text,
                 Berat_Cucian        = Convert.ToInt32(tbberat.Text),
                 Jenis_Paket         = tbjenispaket.Text,
                 Harga_Paket         = Convert.ToDouble(tbharga.Text),
                 Harga_Total         = Convert.ToDouble(tbhargatotal.Text),
                 Tanggal_Pemsanan    = Convert.ToDateTime(dateTimePicker2.Text),
                 Tanggal_Pengambilan = Convert.ToDateTime(dateTimePicker1.Text),
             };
             db.Pelanggans.Add(pelanggan);
             db.SaveChanges();
             MessageBox.Show("Pesanan Disimpan");
         }
     }
     else
     {
         MessageBox.Show("Nama, Nomor Hp, Berat Cucian, Jenis Paket, Tanggal Pemesanan harus diisi");
     }
 }