ASP.NET傳遞參數給Crystal Report做Export或Print的動作

2008-07-21

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ASP.NET

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首先準備一個crystal report檔(CrystalReport.rpt),內容如下:

在欄位總管新增一個參數,如下所示:

接下來就是程式碼

asp.net(C#)

ReportView.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ReportView.aspx.cs" Inherits="ReportView" %> <%@ Register Assembly="CrystalDecisions.Web, Version=10.2.3600.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" Namespace="CrystalDecisions.Web" TagPrefix="CR" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>ReportView</title> </head> <body> <form id="form1" runat="server"> <div> <asp:TextBox ID="txbLogo" runat="server"></asp:TextBox> <asp:Button ID="btnPreview" runat="server" OnClick="btnPreview_Click" Text="Preview" /> <asp:Button ID="btnExport" runat="server" OnClick="btnExport_Click" Text="Export" /> <asp:Button ID="btnPrint" runat="server" OnClick="btnPrint_Click" Text="Print" /><br /> <CR:CrystalReportViewer ID="CrystalReportViewer1" runat="server" DisplayToolbar="False" /> <CR:CrystalReportSource ID="CrystalReportSource1" runat="server" /> </div> </form> </body> </html>

ReportView.aspx.cs

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; public partial class ReportView : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void btnPreview_Click(object sender, EventArgs e) { //load crystal report this.CrystalReportSource1.Report.FileName = Server.MapPath("CrystalReport.rpt"); //load param CrystalDecisions.Web.Parameter param = new CrystalDecisions.Web.Parameter(); param.Name = "logo"; param.DefaultValue = this.txbLogo.Text; //add param this.CrystalReportSource1.Report.Parameters.Add(param); //bind this.CrystalReportViewer1.ReportSourceID = this.CrystalReportSource1.ID; this.CrystalReportViewer1.DataBind(); } protected void btnPrint_Click(object sender, EventArgs e) { //create CrystalReport object CrystalDecisions.CrystalReports.Engine.ReportDocument report = new CrystalDecisions.CrystalReports.Engine.ReportDocument(); //load report report.Load(Server.MapPath("CrystalReport.rpt")); //add param report.SetParameterValue("logo", this.txbLogo.Text); //print report.PrintToPrinter(1, false, 0, 0); } protected void btnExport_Click(object sender, EventArgs e) { //create CrystalReport object CrystalDecisions.CrystalReports.Engine.ReportDocument report = new CrystalDecisions.CrystalReports.Engine.ReportDocument(); //load report report.Load(Server.MapPath("CrystalReport.rpt")); //add param report.SetParameterValue("logo", this.txbLogo.Text); //export report.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, true, "test.pdf"); } }

執行結果:

參考網址:

http://www.dotblogs.com.tw/puma/archive/2008/07/16/4503.aspx

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