Crystal Report Filtering Using Selection Parameters

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Configuration;
using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;
namespace CrytsalReportsDemo
{
    public partial class frmReportViewer : Form
    {
        ReportDocument m_cryRpt;
        public frmReportViewer(ReportDocument cryRpt)
        {
            InitializeComponent();
            m_cryRpt = cryRpt;
        }

        private void frmReportViewer_Load(object sender, EventArgs e)
        {
            DbConnectionInfo.SetConnectionString(ConfigurationSettings.AppSettings[0]);
            TableLogOnInfo logOnInfo;
            ConnectionInfo connectionInfo;
            foreach (Table table in m_cryRpt.Database.Tables)
            {
                logOnInfo = table.LogOnInfo;
                connectionInfo = logOnInfo.ConnectionInfo;
                // Set the Connection parameters.
                connectionInfo.DatabaseName = DbConnectionInfo.InitialCatalog;
                connectionInfo.ServerName = DbConnectionInfo.ServerName;
                if (!DbConnectionInfo.UseIntegratedSecurity)
                {
                    connectionInfo.Password = DbConnectionInfo.Password;
                    connectionInfo.UserID = DbConnectionInfo.UserName;
                }
                else
                {
                    connectionInfo.IntegratedSecurity = true;
                }
                table.ApplyLogOnInfo(logOnInfo);
            }

            crystalReportViewer1.ReportSource = m_cryRpt;
            crystalReportViewer1.Refresh();
        }
    }
}