private void dataRowDouble_Click(object sender, DataGridViewCellEventArgs e)
        {
            if (e.RowIndex < 0)
            {
                return;
            }

            var dataRow = brandGridView.Rows[e.RowIndex];

            int.TryParse(dataRow.Cells["id"].Value.ToString(), out int id);
            if (id < 0)
            {
                return;
            }

            var frmBrandAdd = new frmBrandAdd(this, userId, id);

            frmBrandAdd.ShowDialog();
        }
        private void btnEdit_Click(object sender, System.EventArgs e)
        {
            if (brandGridView.SelectedRows.Count > 0)
            {
                DataGridViewRow dataRow = brandGridView.SelectedRows[0];
                int.TryParse(dataRow.Cells["id"].Value.ToString(), out int id);
                if (id < 0)
                {
                    return;
                }

                var frmBrandAdd = new frmBrandAdd(this, userId, id);
                frmBrandAdd.ShowDialog();
            }
            else
            {
                MessageBox.Show("Please select a brand to update");
            }
        }
        private void btnAdd_Click(object sender, System.EventArgs e)
        {
            var frmBrandAdd = new frmBrandAdd(this, userId);

            frmBrandAdd.ShowDialog();
        }