//save a transaction in DB, if it doesn't exist, create a new one, if it does, update it
private void btnSave_Click(object sender, EventArgs e)
{
if (dbc.checkIfExist("Transaction", (int)nId.Value))
{
dbc.update("Transaction", tr);
}
else
{
dbc.insert("Transaction", tr);
}
updateList();
}
private void btnSave_Click(object sender, EventArgs e)
{
if (dbc.checkIfExist("Customer", (int)nId.Value))
{
dbc.update("Customer", cu);
}
else
{
dbc.insert("Customer", cu);
}
updateList();
}
