private void deleteToolStripMenuItem_Click(object sender, EventArgs e)
{
if (MessageBox.Show("Selected record will be deleted", "Delete", MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation) == DialogResult.OK)
{
Product delProd = new Product();
delProd.loadProducts(Convert.ToDouble(lsvView.SelectedItems[0].Text));
delProd.delete();
this.loadListviewItem();
}
}