Web调用水晶报表

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;
using CrystalDecisions.Shared;
using CrystalDecisions.CrystalReports.Engine;
using System.Text;
using System.Data.Odbc;

public partial class Purchase : System.Web.UI.Page
{
    public static OdbcDataAdapter daerp = new OdbcDataAdapter();
    public ReportDocument report = new ReportDocument();
    public DataTable rptdt = new DataTable();

    protected void Page_Load(object sender, EventArgs e)
    {
        ParameterFields paraFields = new ParameterFields();
        ParameterField paraField = new ParameterField();
        ParameterDiscreteValue paravalue = new ParameterDiscreteValue();

        paraField.Name = "單號";
        paravalue.Value = Session["pur_nbr"].ToString();
        paraField.CurrentValues.Add(paravalue);
        paraFields.Add(paraField);

        #region prevent login dialog

        #region 依據廠別加載rpt
        if (Session["rpt_fac"].ToString().Trim() == "'1'")
        {
            report.Load(Server.MapPath("1.rpt"));
        }
        if (Session["rpt_fac"].ToString().Trim() == "'2'")
        {
            report.Load(Server.MapPath("2.rpt"));
        }
        if (Session["rpt_fac"].ToString().Trim() == "'3'")
        {
            report.Load(Server.MapPath("3.rpt"));
        }
        #endregion

        TableLogOnInfo loginfo = new TableLogOnInfo();
        #region
        //loginfo.ConnectionInfo.ServerName = "192.168.1.1";
        loginfo.ConnectionInfo.ServerName = "Server1";
        loginfo.ConnectionInfo.DatabaseName = "Database1";
        loginfo.ConnectionInfo.UserID = "sa";
        loginfo.ConnectionInfo.Password = "sa.";

        report.Database.Tables[2].ApplyLogOnInfo(loginfo);
        report.Database.Tables[8].ApplyLogOnInfo(loginfo);

        TableLogOnInfo loginfo1 = new TableLogOnInfo();
        if (Session["rpt_fac"].ToString().Trim() == "'1'")
        {
            loginfo1.ConnectionInfo.ServerName = "Server2";
            loginfo1.ConnectionInfo.DatabaseName = "Database2";
            loginfo1.ConnectionInfo.UserID = "sa";
            loginfo1.ConnectionInfo.Password = "";
        }
        if (Session["rpt_fac"].ToString().Trim() == "'2'")
        {
            loginfo1.ConnectionInfo.ServerName = "Server3";
            loginfo1.ConnectionInfo.DatabaseName = "Database3";
            loginfo1.ConnectionInfo.UserID = "sa";
            loginfo1.ConnectionInfo.Password = "";
        }
        if (Session["rpt_fac"].ToString().Trim() == "'3'")
        {
            loginfo1.ConnectionInfo.ServerName = "Server4";
            loginfo1.ConnectionInfo.DatabaseName = "Database4";
            loginfo1.ConnectionInfo.UserID = "sa";
            loginfo1.ConnectionInfo.Password = "";
        }
   
        //report.Database.Tables[0].ApplyLogOnInfo(loginfo);
        report.Database.Tables[0].ApplyLogOnInfo(loginfo1);
        report.Database.Tables[1].ApplyLogOnInfo(loginfo1);
        report.Database.Tables[3].ApplyLogOnInfo(loginfo1);
        report.Database.Tables[4].ApplyLogOnInfo(loginfo1);
        report.Database.Tables[5].ApplyLogOnInfo(loginfo1);
        report.Database.Tables[6].ApplyLogOnInfo(loginfo1);
        report.Database.Tables[7].ApplyLogOnInfo(loginfo1);
        #endregion
        #endregion

        try
        {
            #region old
            //report.SetDataSource(rptdt);
            //CrystalReportViewer1.ReportSource = report;
            //CrystalReportViewer1.DataBind();
            #endregion
            CrystalReportViewer1.ReportSource = report;
            CrystalReportViewer1.ParameterFieldInfo = paraFields;
            CrystalReportViewer1.DataBind();
        }
        catch(Exception ex)
        {
            Response.Write(ex.Message);
        }

    }

    private void InitializeComponent()
    {
        this.Unload += new System.EventHandler(this.Purchase_Unload);

    }
    private void Purchase_Unload(object sender, EventArgs e)
    {
        rptdt.Reset();
        report.Dispose();
        report.Close();
    }
}