ProductList.cs 
  1. //
  2. // This code is part of Document Solutions for PDF demos.
  3. // Copyright (c) MESCIUS inc. All rights reserved.
  4. //
  5. using System;
  6. using System.IO;
  7. using System.Drawing;
  8. using System.Text;
  9. using System.Data;
  10. using System.Linq;
  11. using System.Collections.Generic;
  12. using GrapeCity.Documents.Pdf;
  13. using GrapeCity.Documents.Text;
  14. using GrapeCity.Documents.Html;
  15.  
  16. namespace DsPdfWeb.Demos
  17. {
  18.     // This sample shows how to render a report (the list of products
  19.     // from the standard NWind sample database) using an HTML string
  20.     // as a template. The report is created by looping over the data records
  21.     // and building up the resulting HTML from table row template filled with
  22.     // the actual data. The generated HTML string is then passed to GcHtmlRenderer
  23.     // to create the PDF.
  24.     //
  25.     // Please see notes in comments at the top of HelloWorldHtml
  26.     // sample code for details on adding DsHtml to your projects.
  27.     public class ProductList
  28.     {
  29.         public void CreatePDF(Stream stream)
  30.         {
  31.             const string TTAG = "___TABLE___";
  32.  
  33.             // HTML page template:
  34.             const string tableTpl =
  35.                 "<!DOCTYPE html>" +
  36.                 "<html>" +
  37.                 "<head>" +
  38.                 "<style>" +
  39.  
  40.                 "html * {" +
  41.                 "  font-family: 'Trebuchet MS', Arial, Helvetica, sans-serif !important;" +
  42.                 "}" +
  43.  
  44.                 "h1 {" +
  45.                 "  color: #1a5276;" +
  46.                 "  background-color: #d2b4de;" +
  47.                 "  text-align: center;" +
  48.                 "  padding: 6px;" +
  49.                 "}" +
  50.  
  51.                 "thead {display: table-header-group;}" +
  52.  
  53.                 "#products {" +
  54.                 "  font-family: 'Trebuchet MS', Arial, Helvetica, sans-serif;" +
  55.                 "  border-collapse: collapse;" +
  56.                 "  width: 100%;" +
  57.                 "}" +
  58.  
  59.                 "#products td, #products th {" +
  60.                 "  border: 1px solid #ddd;" +
  61.                 "  padding: 8px;" +
  62.                 "}" +
  63.  
  64.                 "#products tr:nth-child(even){background-color: #f2f2f2;}" +
  65.  
  66.                 "#products tr:hover {background-color: #ddd;}" +
  67.  
  68.                 "#products th {" +
  69.                 "  padding-top: 12px;" +
  70.                 "  padding-bottom: 12px;" +
  71.                 "  text-align: left;" +
  72.                 "  background-color: #a569bd;" +
  73.                 "  color: white;" +
  74.                 "}" +
  75.                 "</style>" +
  76.                 "</head>" +
  77.                 "<body>" +
  78.  
  79.                 TTAG +
  80.  
  81.                 "</body>" +
  82.                 "</html>";
  83.  
  84.             const string tableHead = "<h1>Product Price List</h1>";
  85.  
  86.             const string tableFmt =
  87.                 "<table id='products'>" +
  88.                 "  <thead>" +
  89.                 "    <th>Product ID</th>" +
  90.                 "    <th>Description</th>" +
  91.                 "    <th>Supplier</th>" +
  92.                 "    <th>Quantity Per Unit</th>" +
  93.                 "    <th>Unit Price</th>" +
  94.                 "  </thead>" +
  95.                 "{0}" +
  96.                 "</table>";
  97.  
  98.             const string dataRowFmt =
  99.                 "  <tr>" +
  100.                 "    <td>{0}</td>" +
  101.                 "    <td>{1}</td>" +
  102.                 "    <td>{2}</td>" +
  103.                 "    <td>{3}</td>" +
  104.                 "    <td align='right'>{4:C}</td>" +
  105.                 "  </tr>";
  106.  
  107.             using var ds = new DataSet();
  108.             ds.ReadXml(Path.Combine("Resources", "data", "DsNWind.xml"));
  109.  
  110.             DataTable dtProds = ds.Tables["Products"];
  111.             DataTable dtSupps = ds.Tables["Suppliers"];
  112.  
  113.             var products =
  114.                 from prod in dtProds.Select()
  115.                 join supp in dtSupps.Select()
  116.                 on prod["SupplierID"] equals supp["SupplierID"]
  117.                 orderby prod["ProductName"]
  118.                 select new
  119.                 {
  120.                     ProductID = prod["ProductID"],
  121.                     ProductName = prod["ProductName"],
  122.                     Supplier = supp["CompanyName"],
  123.                     QuantityPerUnit = prod["QuantityPerUnit"],
  124.                     UnitPrice = prod["UnitPrice"]
  125.                 };
  126.  
  127.             var sb = new StringBuilder();
  128.             sb.AppendLine(tableHead);
  129.             foreach (var prod in products)
  130.                 sb.AppendFormat(dataRowFmt, prod.ProductID, prod.ProductName, prod.Supplier, prod.QuantityPerUnit, prod.UnitPrice);
  131.  
  132.             var html = tableTpl.Replace(TTAG, string.Format(tableFmt, sb.ToString()));
  133.  
  134.             using var browser = Common.Util.NewHtmlBrowser();
  135.             using var htmlPage = browser.NewPage(html);
  136.  
  137.             // PdfOptions specifies options for HTML to PDF conversion:
  138.             var pdfOptions = new PdfOptions()
  139.             {
  140.                 Margins = new PdfMargins(0.2f, 1, 0.2f, 1),
  141.                 DisplayHeaderFooter = true,
  142.                 HeaderTemplate = "<div style='color:#1a5276; font-size:12px; width:1000px; margin-left:0.2in; margin-right:0.2in'>" +
  143.                     "<span style='float:left;'>Product Price List</span>" +
  144.                     "<span style='float:right'>Page <span class='pageNumber'></span> of <span class='totalPages'></span></span>" +
  145.                     "</div>",
  146.                 FooterTemplate = "<div style='color: #1a5276; font-size:12em; width:1000px; margin-left:0.2in; margin-right:0.2in;'>" +
  147.                     "<span>(c) MESCIUS inc. All Rights Reserved.</span>" +
  148.                     "<span style='float:right'>Generated on <span class='date'></span></span></div>"
  149.             };
  150.             // Render the source Web page to the temporary file:
  151.             var tmp = Path.GetTempFileName();
  152.             htmlPage.SaveAsPdf(tmp, pdfOptions);
  153.  
  154.             // Copy the created PDF from the temp file to target stream:
  155.             using (var ts = File.OpenRead(tmp))
  156.                 ts.CopyTo(stream);
  157.             // Clean up:
  158.             File.Delete(tmp);
  159.  
  160.             // Done.
  161.         }
  162.     }
  163. }
  164.