private void txtProductName_TextChanged(object sender, EventArgs e)
{
StorageDAO storage = new StorageDAO();
List <SellGridView> list = storage.listCustombyName(txtProductName.Text).ToList();
dgv_sellProduct.DataSource = list;
}
private void loadDataByKey(string text)
{
StorageDAO s = new StorageDAO();
dgvTonKho.DataSource = s.listCustombyName(text).ToList();
}