สอบถามเรื่องการดึง database มาใส่ gridview แบบ 2 sql ASP.NET c#

DataTable dt = new DataTable();
    DataSet ds = new DataSet();
 

    protected void Page_Load(object sender, EventArgs e)
    {

        string[] query2 = new string[14];
        string[] query = new string[14];
     
        for (int i = 0; i < 14; i++)
        {
            string connetionString = null;
            string strPath = System.IO.Directory.GetCurrentDirectory();
            connetionString = "Provider=Microsoft.ACE.OLEDB.12.0;"
                        + "Data Source=" + strPath + "\\Database4.accdb;"
                        + "Persist Security Info=False;";

            DataSet ds = new DataSet();

            query[i] = "Select COUNT(S) AS ชาย FROM Table1 Where ชื่อตำแหน่ง = 'วิศวกร" + i + "' AND S = 'ช'";


            OleDbCommand cmd = new OleDbCommand(query[i]);
            OleDbConnection connection = new OleDbConnection(connetionString);
            OleDbDataAdapter da = new OleDbDataAdapter();
            cmd.CommandType = CommandType.Text;
            cmd.Connection = connection;
            da.SelectCommand = cmd;
        


            da.TableMappings.Add("ชาย", "Table1");
            da.Fill(dt);
           
        }

      
        for (int i = 0; i < 14; i++)
        {
            string connetionString = null;
            string strPath = System.IO.Directory.GetCurrentDirectory();
            connetionString = "Provider=Microsoft.ACE.OLEDB.12.0;"
                        + "Data Source=" + strPath + "\\Database4.accdb;"
                        + "Persist Security Info=False;";

            query2[i] = "Select COUNT(S) AS หญิง FROM Table1 Where ชื่อตำแหน่ง = 'วิศวกร" + i + "' AND S = 'ญ'";


            OleDbCommand cmd = new OleDbCommand(query2[i]);
            OleDbConnection connection = new OleDbConnection(connetionString);
            OleDbDataAdapter da = new OleDbDataAdapter();
            cmd.CommandType = CommandType.Text;
            cmd.Connection = connection;
            connection.Open();
            da.SelectCommand = cmd;



            da.TableMappings.Add("หญิง", "Table1");
            da.Fill(dt);
        }

      



        GridView1.DataSource = dt;
        GridView1.DataBind();
    }