C＃/ XAML winRT应用程序导出PDF

Question

如何在winRT应用程序中生成pdf？我使用iTextSharp在Windows应用商店生成pdf，但winRT没有文件流，文件模式或文件夹。帮助

这里是我的代码：

iTextSharp.text.pdf.PdfWriter writer = 
    iTextSharp.text.pdf.PdfWriter.GetInstance(
     doc, new System.IO.FileStream(System.IO.Directory.GetCurrentDirectory() + 
             "\\ScienceReport.pdf", System.IO.FileMode.Create 
     ) 
    ); 

Answer 1

我可以生成在WinRT中

 string path = @"ExportPDF.pdf"; 
     var storageFolder = Windows.Storage.ApplicationData.Current.LocalFolder; 

     // Create empty PDF file. 
     var file = await storageFolder.CreateFileAsync(path, CreationCollisionOption.ReplaceExisting); 
     if (file != null) 
     { 
      await FileIO.WriteTextAsync(file, string.Empty); 
     } 

     // Open to PDF file for read/write. 
     StorageFile sampleFile = await storageFolder.GetFileAsync(path); 
     var stream = await sampleFile.OpenAsync(Windows.Storage.FileAccessMode.ReadWrite); 

     // Create an instance of the document class which represents the PDF document itself. 
     Document document = new Document(PageSize.A4, 25, 25, 30, 30); 

     // Create an instance to the PDF file by creating an instance of the PDF 
     // Writer class using the document and the filestrem in the constructor. 
     PdfWriter writer = PdfWriter.GetInstance(document, stream.AsStream()); 

     // Add meta information to the document 
     document.AddAuthor("Jigs"); 
     document.AddCreator("Sample application"); 
     document.AddKeywords("PDF App"); 
     document.AddSubject("Document subject - Describing the steps creating a PDF document"); 
     document.AddTitle("The document title - PDF creation"); 

     // Open the document to enable you to write to the document 
     document.Open(); 
     // Add a simple and wellknown phrase to the document in a flow layout manner 
     document.Add(new Paragraph("Hello!")); 

     // Close the document 
     document.Close(); 
     // Close the writer instance 
     writer.Close();