How can I load my data into array with C#?

Question

I try to load my data into array.But the error said "Object reference not set to an instance of an object".

public void UpDate()
{
    int i = 0;
    MySqlConnection con = new MySqlConnection("host=localhost;user=MyUser;password=MyPass;database=MyDatabase");
    string sql = "SELECT * FROM queue ORDER BY Time DESC ";
    MySqlCommand cmd = new MySqlCommand(sql, con);
    con.Open();
    MySqlDataReader read = cmd.ExecuteReader();
    while (read.Read())
    {
        DataQ[i] = read.GetString("queue"); //Error "Object reference not set to an instance of an object"
        DataT[i] = read.GetString("Time");             
        i++;
    }
    con.Close();
}