将水晶报告导出为PDF会丢失参数值 [英] Exporting crystal report to PDF gives missing parameter values

问题描述

我正在尝试导出水晶报告以便邮寄。我用过：

Hi,
I am trying to export crystal report in order to mail it. I have used :

printbanqoute.ExportToDisk(ExportFormatType.PortableDocFormat, "E:\\ASD.pdf");

然而我收到错误的缺少参数值。

如果不使用ExportToDisc，它可以正常工作。

我使用了4个参数并检查了它们中的每一个它有值，继承人我是如何使用的：

However I get an error the "Missing Parameter Values".
Without using ExportToDisc it works fine.
I have used 4 parameters and checked each one of them it has values, heres how i used :

ParameterFields paramFields = new ParameterFields();
                ParameterField paramField = new ParameterField();
                ParameterDiscreteValue paramDiscreteValue = new ParameterDiscreteValue();
                paramField.Name = "phoneno";
                paramDiscreteValue.Value = BLDashboard.phoneno;
                paramField.CurrentValues.Add(paramDiscreteValue);
                paramFields.Add(paramField);

                paramField = new ParameterField(); // <-- This line is added
                paramDiscreteValue = new ParameterDiscreteValue();  // <-- This line is added
                paramField.Name = "name";
                paramDiscreteValue.Value = BLDashboard.custname;
                paramField.CurrentValues.Add(paramDiscreteValue);
                paramFields.Add(paramField);

                paramField = new ParameterField(); // <-- This line is added
                paramDiscreteValue = new ParameterDiscreteValue();  // <-- This line is added
                paramField.Name = "address";
                paramDiscreteValue.Value = BLDashboard.add;
                paramField.CurrentValues.Add(paramDiscreteValue);
                paramFields.Add(paramField);

                paramField = new ParameterField(); // <-- This line is added
                paramDiscreteValue = new ParameterDiscreteValue();  // <-- This line is added
                paramField.Name = "email";
                paramDiscreteValue.Value = BLDashboard.email;
                paramField.CurrentValues.Add(paramDiscreteValue);
                paramFields.Add(paramField);

                crystalReportViewer1.ParameterFieldInfo = paramFields;

我用谷歌搜索了一些人告诉setdatasource然后将vlaue传递给参数我也试过了，但它没有炒锅。

请heclp坚持这几天。

谢谢



我尝试了什么：



我在断点时尝试检查每个参数值。各种代码如

I googled and some one told to setdatasource before passing vlaue to parameter i tried that too but it didnt wok.
Please heclp been stucked on this for days.
Thanks

What I have tried:

I have tried check each parameter value while in breakpoint. And various codes like

try
{
    // Export the Report to Response stream in PDF format and file name Customers
    //printbanqoute.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, true, "Customers");
    printbanqoute.ExportToHttpResponse(ExportFormatType.PortableDocFormat, response, true, "Quotation");
    // There are other format options available such as Word, Excel, CVS, and HTML in the ExportFormatType Enum given by crystal reports
}
catch (Exception ex)
{
    Console.WriteLine(ex.Message);
    ex = null;
}

但是在响应中获取错误 - 当前不存在名称响应 context

But gets error on "response" - The name 'response' does not exist in current context

推荐答案

我能够解决我的问题。我在`crystalviewer1_Load`事件中写了所有代码，即;导出和发送电子邮件以及将数据填充到水晶报告中。所以我不得不创建一个按钮电子邮件导出和发送电子邮件。

继承我的代码导出和发送电子邮件，Button1是crystalviewer上的电子邮件按钮：

I am able to solve my issue. I was writing all codes in `crystalviewer1_Load` event ie; exporting and email as well as populating data to crystal report. So I had to create a Button Email to export and email.
Heres my code to export and email, Button1 is the email button on crystalviewer:

private void button1_Click(object sender, EventArgs e)
 {
     try
     {
         billprint.ExportToDisk(ExportFormatType.PortableDocFormat, "E:\\" + filename);
     }
     catch(Exception ex)
     {
         MessageBox.Show(ex.ToString());

     }
     try
     {
         MailMessage mm = new MailMessage();
         string toemail = BLDashboard.email;
         string custnm = BLDashboard.custname;

         mm.From = new MailAddress("[e-mail]", "Kashif Ahhmed");
         mm.To.Add(new MailAddress(toemail, custnm));
         mm.IsBodyHtml = true;
         string name = BLDashboard.custname;
         mm.Subject = "Bill from Indian Restaurant";
         //mm.Body = "Testing Crsytel Report Attachment send via Email";

         String Body = "<div>Hello " + name + ",<br> Thank you for considersing us for your next Party/Event, here is the Bill for the Party/Event.<br> If any queries you can reach us at 6096464445. <br> Thank You</div>";
         mm.Body = Body;
         //mm.Attachments.Add(new Attachment(rpt.ExportToStream(ExportFormatType.PortableDocFormat), fileName));
         mm.Attachments.Add(new Attachment("E:\\" + filename));



         SmtpClient sc = new SmtpClient("smtp.kaem.in");
         sc.Credentials = new NetworkCredential("emailadd", "*********");
         sc.Send(mm);
         // MailMessage msg = mm.CreateMailMessage("[e-mail]", replacements, Body, new System.Web.UI.Control());
         MessageBox.Show("Email successfully sent to " + toemail);
     }
     catch (Exception e1)
     {

         MessageBox.Show("Unable to send email to [e-mail] due to following error:\n\n" + e1.Message, "Email send error", MessageBoxButtons.OK, MessageBoxIcon.Error);

         //{
         //    this.SendEmail(emailId, subject, body, rpt, fileName);
         //}
     }
 }

这篇关于将水晶报告导出为PDF会丢失参数值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！