Question

Im having a table called transaktions where i inserted customers billings and customer number. My primary key is an int id that has identity specifikation. My question is how do i select all rows that contains a specific customer_nr and returns all the results?

Right now im doing:

public string getCustomerTransaktions(string CustNr)
{
    using (var cmd = new SqlCommand("select billing_name from [transaktions] where customer_nr = @customer_nr", Connect()))
    {
        cmd.Parameters.AddWithValue("@customer_nr", custNr);
        using (var er = cmd.ExecuteReader())
        {
            if (er.Read())
            {
                return (string)er["billing_name"];
            }
        }
    }
    return "UNKNOWN";
}

This will only print the first row that matches the customer nr, there are atleast 20 rows left. Anyone have any suggestion that will help me?
Best Regards

Answer 1

I guesss a simple solution would be to return the whole ResultSet instead of tring to work around with string. Then iterate through its all items from your calling method