ขอถามเกี่ยวกับการใช้ Cystral Report ครับตรงถ้าเราไม่ได้ใช่ Wizard เราจะเรียกฐานข้อมูลแล้วจัดการเองต้องทำอย่างไรครับ

		SqlConnection objConn = new SqlConnection();
		SqlCommand objCmd = new SqlCommand();
		SqlDataAdapter dtAdapter = new SqlDataAdapter();

		DataSet ds = new DataSet();
		DataTable dt = null;
		string strConnString = null;
		string strSQL = null;

		strConnString = "Server=localhost;UID=sa;PASSWORD=;database=mydatabase;Max Pool Size=400;Connect Timeout=600;";
		strSQL = "SELECT * FROM audit WHERE CustomerID = '" + this.txtCustomerID.Text + "' ";

		objConn.ConnectionString = strConnString;
		var _with1 = objCmd;
		_with1.Connection = objConn;
		_with1.CommandText = strSQL;
		_with1.CommandType = CommandType.Text;
		dtAdapter.SelectCommand = objCmd;

		dtAdapter.Fill(ds, "myDataTable");
		dt = ds.Tables[0];

		dtAdapter = null;
		objConn.Close();
		objConn = null;

		ReportDocument rpt = new ReportDocument();
		string directory = My.Application.Info.DirectoryPath;
		//rpt.Load(directory & "\\myCrystalReport1.rpt")
		rpt.Load("C:\\DemoCrystalReport2\\DemoCrystalReport2\\myCrystalReport1.rpt");
		rpt.SetDataSource(dt);
		this.CrystalReportViewer1.ReportSource = rpt;
		this.CrystalReportViewer1.Refresh();

string directory = My.Application.Info.DirectoryPath; //ตรงนี้มันต้อง Using อะไรมาใช้หรือป่าวครับ
rpt.Load("C:\\DemoCrystalReport2\\DemoCrystalReport2\\myCrystalReport1.rpt"); 

using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Configuration;
using System.Data.SqlClient;
using CrystalDecisions.CrystalReports.Engine;
using System.Diagnostics;

namespace Disbursed
{
    public partial class ReportPrint : Form
    {
        //Variable Type or new object
        SqlConnection conn = new SqlConnection();
        DataSet ds = new DataSet();
        DataTable dt = null;
        SqlDataAdapter da = new SqlDataAdapter();
        SqlCommand cmd = new SqlCommand();

        public ReportPrint()
        {
            InitializeComponent();
        }

        private void ReportPrint_Load(object sender, EventArgs e)
        {
            //Connecting your database = App.config("AppName")
            ConnectionStringSettings conSettings = ConfigurationManager.ConnectionStrings["ApplicationDatabase"];
            string ConnectionStrings = conSettings.ConnectionString;
            conn = new SqlConnection(ConnectionStrings);
        }

        private void tsb_SearchReport_Click(object sender, EventArgs e)
        {

            conn.Open();
            SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM CommiteeReq WHERE CustomerKey =" + tstb_CustomerKey.Text, conn);
            ds.Clear();
            da.Fill(ds, "CommiteeReqReport");
            dt = ds.Tables[0];
            da = null;
            conn.Close();
            conn = null;
            ReportDocument ReportDis = new ReportDocument();
            //string directory = 
            ReportDis.Load("C:\\DemoCrystalReport2\\DemoCrystalReport2\\myCrystalReport1.rpt"); 
            ReportDis.SetDataSource(dt);
            this.crystalReportViewer1.ReportSource = ReportDis;
            this.crystalReportViewer1.Refresh();

        }

    }
}