Crystal Report导出为PDF无效

Question

I'm trying to export Crystal report to PDF format from ASP.NET C#. I want it to be downloaded directly to the client.

When I click on the button, nothing happens.

            string parameter = ViewState["strInvoiceID"].ToString();
            TableLogOnInfo logOnInfo = new TableLogOnInfo();

            logOnInfo.ConnectionInfo.ServerName = System.Configuration.ConfigurationManager.AppSettings["Server"];
            logOnInfo.ConnectionInfo.DatabaseName = System.Configuration.ConfigurationManager.AppSettings["Database"];
            logOnInfo.ConnectionInfo.IntegratedSecurity = false;
            logOnInfo.ConnectionInfo.UserID = System.Configuration.ConfigurationManager.AppSettings["UID"];
            logOnInfo.ConnectionInfo.Password = System.Configuration.ConfigurationManager.AppSettings["PWD"];

            ReportDocument rd = new ReportDocument();
            string reportPath = Server.MapPath("InvoiceReport.rpt");
            rd.Load(reportPath);

            foreach (CrystalDecisions.CrystalReports.Engine.Table tbl in rd.Database.Tables)
                tbl.ApplyLogOnInfo(logOnInfo);


            ParameterValues crParameterValues = new ParameterValues();
            ParameterDiscreteValue crParameterDiscreteValue = new ParameterDiscreteValue();
            crParameterDiscreteValue.Value = parameter;

            rd.DataDefinition.ParameterFields["InvoiceID"].CurrentValues.Clear();
            crParameterValues.Add(crParameterDiscreteValue);
            rd.DataDefinition.ParameterFields["InvoiceID"].ApplyCurrentValues(crParameterValues);

            Response.Buffer = false;
            Response.ClearContent();
            Response.ClearHeaders();
            rd.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, true, "Invoice" + parameter + ".pdf");

Appreciate your help. Also, Is there any more optimized way for passing parameters to the report?

Answer 1

Depending on where you want to export it to, try this which will save it to disk:

rd.ExportToDisk(ExportFormatType.PortableDocFormat, "C:\report.pdf");

Hope that helps,

Chris

EDIT:

Try setting your asAttachment parameter to false and see what happens:

  rd.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, false, 
 "Invoice" + parameter + ".pdf");