Nasıl mvc4 itextsharp kullanarak html dosyalarını pdf dönüştürmek

Question

Ben mvc içinde itextsharp kullanarak html dosyalarını pdf dönüştürüyorum. Bu bağlantıya başvurdum. http://www.rswebsols.com/tutorials/programming/asp-net-generate-pdf-html-itextsharp Bu yöntemde parametre olarak pHTML dizesini geçirirler. Bunu anlamadım mı? html'yi dize formatına dönüştürmem gerekiyor mu ve sonra bu dizeyi getpdf yöntemine iletmeliyim? Html'yi string'e nasıl dönüştürebilirim? Html belgesinin yolu var.

Answer 1

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.IO; 

using System.Data; 
using iTextSharp.text; 
using iTextSharp.text.html.simpleparser; 
using iTextSharp.text.pdf; 

namespace HTMLtoPDF 
{ 
    public partial class ConvertHTMLtoPDF : System.Web.UI.Page 
    { 
     protected void Page_Load(object sender, EventArgs e) 
     { 

     } 

     protected void btnClick_Click(object sender, EventArgs e) 
     { 
      DownloadAsPDF(); 
     } 

     public void DownloadAsPDF() 
     { 
      try 
      { 
       string strHtml = string.Empty; 
       string pdfFileName = Request.PhysicalApplicationPath + "\\files\\" + "GenerateHTMLTOPDF.pdf"; 

       StringWriter sw = new StringWriter(); 
       HtmlTextWriter hw = new HtmlTextWriter(sw); 
       dvHtml.RenderControl(hw); 
       StringReader sr = new StringReader(sw.ToString()); 
       strHtml = sr.ReadToEnd(); 
       sr.Close(); 

       CreatePDFFromHTMLFile(strHtml, pdfFileName); 

       Response.ContentType = "application/x-download"; 
       Response.AddHeader("Content-Disposition", string.Format("attachment; filename=\"{0}\"", "GenerateHTMLTOPDF.pdf")); 
       Response.WriteFile(pdfFileName); 
       Response.Flush(); 
       Response.End(); 
      } 
      catch (Exception ex) 
      { 
       Response.Write(ex.Message); 
      } 
     } 

     public void CreatePDFFromHTMLFile(string HtmlStream, string FileName) 
     { 
      try 
      { 
       object TargetFile = FileName; 
       string ModifiedFileName = string.Empty; 
       string FinalFileName = string.Empty; 


       GeneratePDF.HtmlToPdfBuilder builder = new GeneratePDF.HtmlToPdfBuilder(iTextSharp.text.PageSize.A4); 
       GeneratePDF.HtmlPdfPage first = builder.AddPage(); 
       first.AppendHtml(HtmlStream); 
       byte[] file = builder.RenderPdf(); 
       File.WriteAllBytes(TargetFile.ToString(), file); 

       iTextSharp.text.pdf.PdfReader reader = new iTextSharp.text.pdf.PdfReader(TargetFile.ToString()); 
       ModifiedFileName = TargetFile.ToString(); 
       ModifiedFileName = ModifiedFileName.Insert(ModifiedFileName.Length - 4, "1"); 

       iTextSharp.text.pdf.PdfEncryptor.Encrypt(reader, new FileStream(ModifiedFileName, FileMode.Append), iTextSharp.text.pdf.PdfWriter.STRENGTH128BITS, "", "", iTextSharp.text.pdf.PdfWriter.AllowPrinting); 
       reader.Close(); 
       if (File.Exists(TargetFile.ToString())) 
        File.Delete(TargetFile.ToString()); 
       FinalFileName = ModifiedFileName.Remove(ModifiedFileName.Length - 5, 1); 
       File.Copy(ModifiedFileName, FinalFileName); 
       if (File.Exists(ModifiedFileName)) 
        File.Delete(ModifiedFileName); 

      } 
      catch (Exception ex) 
      { 
       throw ex; 
      } 
     } 
    } 
}