[水晶报表]导出PDF or Excel,并返回文件到用户的IE浏览器中

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

using CrystalDecisions.Shared;

using CrystalDecisions.CrystalReports.Engine;

namespace MinKe.Library

{

//=========================================================

// File: WebForm1.aspx // Version:0.0

// Date: 2003-1-15

// Script Written by satan

//=========================================================

// Copyright (C) 2001,2002 www.LionSky.Net. All rights reserved.

// Web: http://www.Lionsky.net,http://www.Lionsky.net/MyWebSite/Index.Aspx
// Email: lion-a@sohu.com

//=========================================================

/// <summary>

/// WebForm1 的摘要说明。

/// </summary>

public class WebForm1 : System.Web.UI.Page

{

protected CrystalDecisions.Web.CrystalReportViewer CrystalReportViewer1;

private CrystalDecisions.CrystalReports.Engine.ReportDocument ReportDoc;

private TableLogOnInfo logOnInfo;

private DiskFileDestinationOptions FileOPS;

protected System.Web.UI.WebControls.Button Button1;

private ExportOptions ExOPS;

public WebForm1()

{

//

// TODO: 在此处添加构造函数逻辑

//

ReportDoc=new ReportDocument();

logOnInfo=new TableLogOnInfo();

FileOPS=new DiskFileDestinationOptions();

}

/// <summary>

/// 导出报表文件为PDF格式

/// </summary>

/// <param name="ReportFile">报表文件名称,调用时请使用Server.MapPath("报表文件.rpt")这样来给这个参数</param>

/// <param name="ReportDataSource">报表文件所使用的数据源,是一个Dataset</param>

/// <param name="PDFFileName">你要导成的目标文件名称,注意不要放在wwwroot等目录中,iis会不让你导出的</param>

/// <returns>bool成功返回true,失败返回false</returns>

public bool ExportToPDF(string ReportFile,object ReportDataSource,string PDFFileName)

{

try

{

ReportDoc.Load(ReportFile);

ReportDoc.SetDataSource(ReportDataSource);

FileOPS.DiskFileName=PDFFileName;

ExOPS=ReportDoc.ExportOptions;

ExOPS.DestinationOptions=FileOPS;

ExOPS.ExportDestinationType=CrystalDecisions.Shared.ExportDestinationType.DiskFile;

ExOPS.ExportFormatType=CrystalDecisions.Shared.ExportFormatType.PortableDocFormat;

ReportDoc.Export();

return true;

}

catch

{

return false;

}

}

/// <summary>

/// 导出报表文件到Excel格式

/// </summary>

/// <param name="ReportFile">报表文件名称,调用时请使用Server.MapPath("报表文件.rpt")这样来给这个参数</param>

/// <param name="ReportDataSource">报表文件所使用的数据源,是一个Dataset</param>

/// <param name="ExcelFileName">你要导成的目标文件名称,注意不要放在wwwroot等目录中,iis会不让你导出的</param>

/// <returns>成功返回true失败返回false</returns>

public bool ExportToExcel(string ReportFile,object ReportDataSource,string ExcelFileName)

{

try

{

ReportDoc.Load(ReportFile);

ReportDoc.SetDataSource(ReportDataSource);

FileOPS.DiskFileName=ExcelFileName;

ExOPS=ReportDoc.ExportOptions;

ExOPS.DestinationOptions=FileOPS;

ExOPS.ExportDestinationType=CrystalDecisions.Shared.ExportDestinationType.DiskFile;

ExOPS.ExportFormatType=CrystalDecisions.Shared.ExportFormatType.Excel;

ReportDoc.Export();

return true;

}

catch

{

return false;

}

}

/// <summary>

/// 返回PDF文件到用户的IE浏览器中

/// </summary>

/// <param name="ReportFile">报表文件名称,调用时请使用Server.MapPath("报表文件.rpt")这样来给这个参数</param>

/// <param name="ReportDataSource">报表文件所使用的数据源,是一个Dataset</param>

/// <param name="page">用于显示PDF WebForm</param>

/// <returns></returns>

public bool ReturnPDF(string ReportFile,object ReportDataSource,System.Web.UI.Page page)

{

int temp;

temp=System.Convert.ToInt32(System.DateTime.Now.Millisecond.ToString());

System.Random ra=new System.Random(temp);

int TmpNumber=ra.Next();

string TmpPDFFileName="c://"+System.Convert.ToString(TmpNumber)+".pdf";

if (ExportToPDF(ReportFile,ReportDataSource,TmpPDFFileName)==true)

{

page.Response.ClearContent();

page.Response.ClearHeaders();

page.Response.ContentType="application/pdf";

page.Response.WriteFile(TmpPDFFileName);

page.Response.Flush();

page.Response.Close();

System.IO.File.Delete(TmpPDFFileName);

return true;

}

else

{

return false;

}

}

/// <summary>

/// 返回Excel文件到用户的IE浏览器中

/// </summary>

/// <param name="ReportFile"></param>

/// <param name="ReportDataSource"></param>

/// <param name="page"></param>

/// <returns></returns>

public bool ReturnExcel(string ReportFile,object ReportDataSource,System.Web.UI.Page page)

{

int temp;

temp=System.Convert.ToInt32(System.DateTime.Now.Millisecond.ToString());

System.Random ra=new System.Random(temp);

int TmpNumber=ra.Next();

string TmpExcelFileName="c://"+System.Convert.ToString(TmpNumber)+".xls";

if (ExportToExcel(ReportFile,ReportDataSource,TmpExcelFileName)==true)

{

page.Response.ClearContent();

page.Response.ClearHeaders();

page.Response.ContentType="application/xls";

page.Response.WriteFile(TmpExcelFileName);

page.Response.Flush();

page.Response.Close();

System.IO.File.Delete(TmpExcelFileName);

return true;

}

else

{

return false;

}

}

private void Page_Load(object sender, System.EventArgs e)

{

}

#region Web Form Designer generated code

override protected void OnInit(EventArgs e)

{

//

// CODEGEN：该调用是 ASP.NET Web 窗体设计器所必需的。

//

InitializeComponent();

base.OnInit(e);

}

/// <summary>

/// 设计器支持所需的方法 - 不要使用代码编辑器修改

/// 此方法的内容。

/// </summary>

private void InitializeComponent()

{

this.Button1.Click += new System.EventHandler(this.Button1_Click);

this.Load += new System.EventHandler(this.Page_Load);

}

#endregion

private void Button1_Click(object sender, System.EventArgs e)

{

MinKe.Data.Db list = new MinKe.Data.Db();

//此处生成PDF文件，list.GetView方法返回一个查询后的DataView数据集

ExportToPDF(Server.MapPath("Report1.rpt"),list.GetView("Select G_B_ID,G_B_Class,G_B_Name,G_B_Sex,G_B_Address,G_B_A_Date,G_B_D_Date From G_Bury Where G_B_ID<200","aa").Table,"c://test.pdf");

//此处返回PDF文件，到客户端的IE中，客户端必须要安装Acrobat才可浏览

ReturnPDF(Server.MapPath("Report1.rpt"),list.GetView("Select G_B_ID,G_B_Class,G_B_Name,G_B_Sex,G_B_Address,G_B_A_Date,G_B_D_Date From G_Bury Where G_B_ID<200","aa").Table,this);

//------生成Excel并返回到IE中的方法和上面相同，分别调用ExportToExcel和ReturnExcel方法--------

}

}

}