How to save SELECT sql query results in an array in C# Asp.net

Question

I have wrote this query to get some results, if I want to save the results in an array what I have to do? I want to use the values which are in col1 and col2 in an IF state

Answer 1

    public void ChargingArraySelect()
    {
        int loop = 0;
        int registros = 0;

        OdbcConnection conn = WebApiConfig.conn();
        OdbcCommand query = conn.CreateCommand();

        query.CommandText = "select dataA, DataB, dataC, DataD FROM table  where dataA = 'xpto'";

        try
        {
            conn.Open();
            OdbcDataReader dr = query.ExecuteReader();

            //take the number the registers, to use into next step
            registros = dr.RecordsAffected;

            //calls an array to be populated
            Global.arrayTest = new string[registros, 4];

            while (dr.Read())
            {
                if (loop < registros)
                {
                    Global.arrayTest[i, 0] = Convert.ToString(dr["dataA"]);
                    Global.arrayTest[i, 1] = Convert.ToString(dr["dataB"]);
                    Global.arrayTest[i, 2] = Convert.ToString(dr["dataC"]);
                    Global.arrayTest[i, 3] = Convert.ToString(dr["dataD"]);
                }
                loop++;
            }
        }
    }


    //Declaration the Globais Array in Global Classs
    private static string[] uso_internoArray1;
    public static string[] arrayTest
    {
        get { return uso_internoArray1; }
        set { uso_internoArray1 = value; }
    }