protected override void Render(HtmlTextWriter writer)
{
if (OverrideRender)
{
StringBuilder sbOut = new StringBuilder();
using (StringWriter swOut = new StringWriter(sbOut, CultureInfo.InvariantCulture))
{
UTF8Encoding enc = new UTF8Encoding(true);
swOut.Write(Encoding.UTF8.GetString(enc.GetPreamble()));
using (HtmlTextWriter htwOut = new HtmlTextWriter(swOut))
{
base.Render(htwOut);
}
}
PDFRenderer.RenderFile(sbOut.ToString(),
PageOptions,
() => // onError
{
util.NotifyAdminEvent("Error saving PDF", String.Format(CultureInfo.CurrentCulture, "User: {0}\r\nOptions:\r\n{1}\r\n\r\nQuery:{2}\r\n",
CurrentUser.UserName,
JsonConvert.SerializeObject(PageOptions),
JsonConvert.SerializeObject(PrintOptions1.Options)), ProfileRoles.maskSiteAdminOnly);
Response.Redirect(Request.Url.PathAndQuery + (Request.Url.PathAndQuery.Contains("?") ? "&" : "?") + "pdfErr=1");
},
(szOutputPDF) => // onSuccess
{
Page.Response.Clear();
Page.Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", String.Format(CultureInfo.CurrentCulture, @"attachment;filename=""{0}.pdf""", CurrentUser.UserFullName));
Response.WriteFile(szOutputPDF);
Page.Response.Flush();
// See http://stackoverflow.com/questions/20988445/how-to-avoid-response-end-thread-was-being-aborted-exception-during-the-exce for the reason for the next two lines.
Page.Response.SuppressContent = true; // Gets or sets a value indicating whether to send HTTP content to the client.
HttpContext.Current.ApplicationInstance.CompleteRequest(); // Causes ASP.NET to bypass all events and filtering in the HTTP pipeline chain of execution and directly execute the EndRequest event.
});
}
else
{
base.Render(writer);
}
}
protected override void Render(HtmlTextWriter writer)
{
if (OverrideRender)
{
PDFRenderer.RenderFile(
PrintOptions.PDFSettings,
(htwOut) => { base.Render(htwOut); },
(szErr) => // onError
{
util.NotifyAdminEvent("Error saving PDF", String.Format(CultureInfo.CurrentCulture, "{0}\r\nUser: {1}\r\nOptions:\r\n{2}\r\n",
szErr,
CurrentUser.UserName,
JsonConvert.SerializeObject(PrintOptions)
), ProfileRoles.maskSiteAdminOnly);
// put the error into the session
PDFError = szErr;
Response.Redirect(Request.Url.PathAndQuery);
},
(szOutputPDF) => // onSuccess
{
try
{
Page.Response.Clear();
Page.Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", String.Format(CultureInfo.CurrentCulture, @"attachment;filename=""{0}.pdf""", CurrentUser.UserFullName));
Response.WriteFile(szOutputPDF);
Page.Response.Flush();
// See http://stackoverflow.com/questions/20988445/how-to-avoid-response-end-thread-was-being-aborted-exception-during-the-exce for the reason for the next two lines.
Page.Response.SuppressContent = true; // Gets or sets a value indicating whether to send HTTP content to the client.
HttpContext.Current.ApplicationInstance.CompleteRequest(); // Causes ASP.NET to bypass all events and filtering in the HTTP pipeline chain of execution and directly execute the EndRequest event.
}
catch (HttpUnhandledException) { } // sometimes the remote host has closed the connection - allow cleanup to proceed.
catch (HttpException) { }
});
}
else
{
base.Render(writer);
}
}
