Asp.net C的PDF或其他“报告查看器”选项#

它是开源的,并使用WebKit将HTML转换为PDF,因此它符合标准.

您可以如何使用它的一个例子是

using (var pdfStream = new FileStream(dlg.FileName,FileMode.OpenOrCreate))
{
    // pass in the HTML you want to appear in the PDF,and the file stream it writes to
    Printer.GeneratePdf(htmlStream,pdfStream);
}

其中GeneratePdf定义为

public static void GeneratePdf(Stream html,Stream pdf) 
    {
        Process process;
        StreamWriter stdin;
        var psi = new ProcessStartInfo();

        psi.FileName = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) + @"Lib","wkhtmltopdf.exe");
        psi.WorkingDirectory = Path.GetDirectoryName(psi.FileName);

        // run the conversion utility
        psi.UseShellExecute = false;
        psi.CreateNoWindow = true;
        psi.RedirectStandardInput = true;
        psi.RedirectStandardOutput = true;
        psi.RedirectStandardError = true;

        psi.Arguments = "-q -n --disable-smart-shrinking - -";
        process = Process.Start(psi);

        try
        {
            stdin = process.StandardInput;
            stdin.AutoFlush = true;
            //stdin.Write(html.ReadToEnd());
            stdin.Write(new StreamReader(html).ReadToEnd());
            stdin.Dispose();

            process.StandardOutput.BaseStream.CopyTo(pdf);

            process.StandardOutput.Close();
            pdf.Position = 0;

            process.WaitForExit(10000);
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            process.Dispose();
        }
    }

在您的情况下,您不是将其写入文件流,而是将其作为PDF写入HTTP输出流.

但请注意,此示例更适合将PDF文件写入磁盘,而不是输出流,因此您需要稍微做一些,以使其适合您.