Populate graph with mysql data

I am developing a C # application and need to fill in a graph with the amount of data registered in 3 MySql tables. It is as follows: The graph should inform the user in different columns how much data are registered in the product tables, logsentrada and logssaida respectively, as in the image below:

Ihavethedifficultyofmakingthispossible.Hereistheimagewiththegraphicintheform:

ConnectionString:

publicclassDadosDaConexao{publicstaticStringservidor="%";
    public static String banco = "estoque_box";
    public static String usuario = "estBox";
    public static String senha = "estoqueBox";
    public static String StringDeConexao
    {
        get
        {
            return "Server=" + servidor + ";Database=" + banco + ";Uid=" + usuario + ";Pwd=" + senha;
        }
    }
}

I think this might help:

public void loadChart()
    {
        MySqlConnection conexao = new MySqlConnection();
        conexao.ConnectionString = DadosDaConexao.StringDeConexao;
        conexao.Open();
        string Query = "select count(*) from produto where pro_cod;";
        MySqlCommand cmdDataBase = new MySqlCommand(Query, conexao);
        MySqlDataReader myReader;
        try
        {
            myReader = cmdDataBase.ExecuteReader();
            while (myReader.Read())
            {
                this.GrProdutos.Series["Produto"].Points.AddXY(myReader.GetString("pro_cod"), myReader.GetString("pro_cod"));
            }

        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }
        conexao.Close();
    }