private void dgvHienThi_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
 {
     frmXuLy_HangTraLai xuly = new frmXuLy_HangTraLai("Sua_KhachHangTraLai", "KhachHangTraLai", "Update", getDatagridview());
     xuly.ShowDialog();
     SelectData();
 }
 private void toolStripStatus_Sua_Click(object sender, EventArgs e)
 {
     frmXuLy_HangTraLai xuly = new frmXuLy_HangTraLai("Sua_KhachHangTraLai", "KhachHangTraLai", "Update",getDatagridview());
     xuly.ShowDialog();
 }
 private void toolStripStatus_ThemMoi_Click(object sender, EventArgs e)
 {
     for (int j = 0; j < 1000; j++)
     {
         if (frmXuLy_HangTraLai.trave == "")
         {
             frmXuLy_HangTraLai xuly = new frmXuLy_HangTraLai("Them_KhachHangTraLai", "KhachHangTraLai", "Insert");
             xuly.ShowDialog();
             SelectData();
         }
         else
         {
             frmXuLy_HangTraLai.trave = "";
             return;
         }
     }
 }
 private void toolStripStatus_ThemMoi_Click(object sender, EventArgs e)
 {
     frmXuLy_HangTraLai xuly = new frmXuLy_HangTraLai("Them_TraLaiNhaCungCap", "TraLaiNhaCungCap","Insert");
     xuly.ShowDialog();
     SelectData();
 }