public void reset()
 {
     T_id.Clear();
     T_lantai.Clear();
     T_nomor.Clear();
     C_tipe.SelectedIndex = 0;
     T_harga.Clear();
 }
 private void B_simpan_Click(object sender, EventArgs e)
 {
     if (L_header.Text == "Tambah Data")
     {
         if (string.IsNullOrEmpty(T_lantai.Text))
         {
             Interaction.MsgBox("Kolom Lantai Masih Kosong!", Constants.vbInformation, "Pemberitahuan");
             T_lantai.Focus();
         }
         else if (C_tipe.SelectedIndex == 0)
         {
             Interaction.MsgBox("Kolom Tipe Kamar Masih Kosong!", Constants.vbInformation, "Pemberitahuan");
             C_tipe.Focus();
         }
         else if (string.IsNullOrEmpty(T_harga.Text))
         {
             Interaction.MsgBox("Kolom Harga Masih Kosong!", Constants.vbInformation, "Pemberitahuan");
             T_harga.Focus();
         }
         else if (string.IsNullOrEmpty(T_nomor.Text))
         {
             Interaction.MsgBox("Kolom No. Kamar Masih Kosong!", Constants.vbInformation, "Pemberitahuan");
             T_nomor.Focus();
         }
         else
         {
             simpan();
         }
     }
     else if (L_header.Text == "Edit Data")
     {
         if (string.IsNullOrEmpty(T_lantai.Text))
         {
             Interaction.MsgBox("Kolom Lantai Masih Kosong!", Constants.vbInformation, "Pemberitahuan");
             T_lantai.Focus();
         }
         else if (!(C_tipe.SelectedIndex == 1 | C_tipe.SelectedIndex == 2))
         {
             Interaction.MsgBox("Kolom Tipe Kamar Masih Kosong!", Constants.vbInformation, "Pemberitahuan");
             C_tipe.Focus();
         }
         else if (string.IsNullOrEmpty(T_harga.Text))
         {
             Interaction.MsgBox("Kolom Harga Masih Kosong!", Constants.vbInformation, "Pemberitahuan");
             T_harga.Focus();
         }
         else if (string.IsNullOrEmpty(T_nomor.Text))
         {
             Interaction.MsgBox("Kolom No. Kamar Masih Kosong!", Constants.vbInformation, "Pemberitahuan");
             T_nomor.Focus();
         }
         else
         {
             koneksi();
             try
             {
                 cmd = new OdbcCommand("select * from tb_kamar where id='" + L_id.Text + "'", conn);
                 dr  = cmd.ExecuteReader();
                 dr.Read();
                 if (dr.HasRows)
                 {
                     simpanUpdate();
                 }
                 else
                 {
                     Interaction.MsgBox("Data Tidak Ditemukan", Constants.vbInformation, "Pemberitahuan");
                     Close();
                 }
             }
             catch (Exception ex)
             {
             }
         }
     }
 }