Question

When I am sending decimal value from C# for example : 5.54
When I am executing query I can see that my variables are represented as 5,54

Anyone have an idea how to achieve to get DOT and not COMMA?

Here is my code:

using (MySqlConnection conn = new MySqlConnection(conn_string.ToString()))
                using (MySqlCommand cmd = conn.CreateCommand())
                {  
                    cmd.CommandText = string.Format("INSERT Test (lat, long) VALUES ({0},{1})",
                                                   OSGconv.deciLat, OSGconv.deciLon);
                    conn.Open();
                    cmd.ExecuteNonQuery();
                }

Answer 1

I totally agree with the other advice. As to the other question regarding comma or dot, it depends on the CurrentCulture. To get the right format you would have to use a ToString, providing Culture.InvariantCulture as the second parameter. This will use the dot for decimal separator.

But, I insist, the other answer is very good advice: use DbParameters. And I add: pass the value as held in C#, not converting it to string. It will be correctly handled by the ADO.NET provider. I.e. if you have to pass a float variable, do pass it without converting to string, but as is, as a float value.