private void ButtonEditPackage_Click(object sender, EventArgs e)
        {
            Package objt = new Package
            {
                ID          = int.Parse(dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[0].Value.ToString()),
                Status      = dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[1].Value.ToString(),
                Date        = dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[2].Value.ToString(),
                IDUser      = int.Parse(dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[3].Value.ToString()),
                NameUser    = dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[4].Value.ToString(),
                SurnameUser = dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[5].Value.ToString(),
                AddressUser = dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[6].Value.ToString()
            };

            if (objt != null)
            {
                using (EditAddPackagePanel frm = new EditAddPackagePanel()
                {
                    PackageInfo = objt
                })
                {
                    if (frm.ShowDialog() == DialogResult.OK)
                    {
                        int packageId = int.Parse(dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[0].Value.ToString());
                        var package   = listOfPackage.FirstOrDefault(p => p.ID == packageId);
                        listOfPackage.Remove(package);
                        listOfPackage.Add(frm.PackageInfo);
                        SortListOfPackage();
                        RefreshDataGridView();
                    }
                }
            }
        }
 private void ButtonAddPackage_Click(object sender, EventArgs e)
 {
     using (EditAddPackagePanel frm = new EditAddPackagePanel()
     {
         PackageInfo = new Package()
     })
     {
         if (frm.ShowDialog() == DialogResult.OK)
         {
             listOfPackage.Add(frm.PackageInfo);
         }
     }
     RefreshDataGridView();
 }