private void btnDeleteTable_Click(object sender, EventArgs e)
{
int id = (int)dgvTable.CurrentRow.Cells["TableId"].Value;
//update data base
if (MessageBox.Show("Are you sure to delete?", "Warning!", MessageBoxButtons.OKCancel) == DialogResult.OK)
{
int flag = tableManager.DeleteByTableId(id);
//if update success
if (flag == 1)
{
dgvTable.DataSource = tableManager.GetAll();
}
}
}