How to verify that you are connected to a MySQL database in C#?

Question

I added the reference for the MySQL server in C#. I thought I have this code right. I know the connection values are right for testing. Here is my error:

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Answer 1

You can do:

using(SqlConnection connection = new MySqlConnection(connectionString))
{
    try
    {
        conn.Open();
    }
    catch(SqlException ex)
    {
        switch(ex.Number) 
        { 
            case 18456: // Can't login
                // Do something
                break;
            default:
                break;
        } 
    }
}

To get the complete list of codes run:

SELECT * FROM master.dbo.sysmessages