水晶报告中的线程被中止异常

问题描述

我们在将报告导出为 PDF 时遇到线程被中止异常.

We were getting the Thread was being aborted Exception while exporting a report into PDF.

我们用于将报告导出为 PDF 的以下代码.

The below code we were using for export a report into PDF.

                    Response.Buffer = true;
                    Response.ClearContent();
                    Response.ClearHeaders();
                    Response.ContentType = "application/pdf";
                    myReportDoc.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, true, Session["ReportName"].ToString());
                    Response.Flush();
                    Response.Close();

请帮我解决这个异常.

推荐答案

SAP 解释说:

该问题已被识别并记录在问题报告 ID ADAPT00765364 下.该错误可能是因为 Response.End() 在 ExportToHttpResponse() 方法中使用.
Reponse.End() 导致线程中止是一个已知问题.这是设计使然.
有关详细信息，请参阅 Microsoft KB312629 文章.

The issue has been identified and logged under Problem Report ID ADAPT00765364.The error is likely caused because Response.End() is used inside the ExportToHttpResponse() method.
It is a known issue that Reponse.End() causes the thread to abort. This is by design.
See Microsoft KB312629 Article for more info.

....
 try
   {
   reportDocument.ExportToHttpResponse(format, Response, true, Page.Title);
   }
 catch (System.Threading.ThreadAbortException)
   {
   }
....

分辨率

您可以编写自己的代码，以 PDF、Word、Excel 等格式将 Crystal Report 直接导出到浏览器.您必须确保使用适当的内容类型.

Resolution

You can write your own code to export a Crystal Report directly to the browser in a format such as PDF, Word, Excel, etc. You must make sure you use the appropriate content type.

将 Crystal Report 以 PDF 格式导出到 Web 浏览器的示例代码

Sample code to export Crystal Report to web browser as PDF

try
{
 boReportDocument.Load(Server.MapPath(@"MyReport.rpt"));
 System.IO.Stream oStream = null;
 byte[] byteArray = null;
 oStream = boReportDocument.ExportToStream (ExportFormatType.PortableDocFormat);
 byteArray = new byte[oStream.Length];
 oStream.Read(byteArray, 0, Convert.ToInt32(oStream.Length - 1));
 Response.ClearContent();
 Response.ClearHeaders();
 Response.ContentType = "application/pdf";
 Response.BinaryWrite(byteArray);
 Response.Flush();
 Response.Close();
 boReportDocument.Close();
 boReportDocument.Dispose();

}
catch (Exception ex)
{
 string s = ex.Message;
}

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