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ItextSharp Error on trying to parse html for pdf conversion

由 无人久伴 提交于 2019-11-27 13:44:02
kuujinbo

`HTMLWorker' has been deprecated in favor of XMLWorker. Here is a working example tested with a snippet of HTML like you used above:

StringReader html = new StringReader(@"
<div style='font-size: 18pt; font-weight: bold;'>
Mouser Electronics <br />Authorized Distributor</div><br /> <br />
<div style='font-size: 14pt;'>Click to View Pricing, Inventory, Delivery & Lifecycle Information:
</div>
<br />
<div>
<table>
<tr><td></td><td>
<a href='http://www.mouser.com/access/?pn=78211-009' 
style='color: Blue; font-size: 10pt; text-decoration: underline;'>78211-009</a></td></tr>
</table></div>    
");      
using (Document document = new Document()) {
  PdfWriter writer = PdfWriter.GetInstance(document, STREAM);
  document.Open();
  XMLWorkerHelper.GetInstance().ParseXHtml(
    writer, document, html
  );
}

When using XMLWorker you need to use well-formed HTML - it's an XML parser, after all. The sample HTML from your question above doesn't have closing <a> or <br> tags. A HTML parser like HtmlAgilityPack will fix those problems, and turn this:

<div><img src='a.gif'><br><hr></div>

into this:

<div><img src='a.gif' /><br /><hr /></div>

with only a few lines of code:

var hDocument = new HtmlDocument()
{
    OptionWriteEmptyNodes = true,
    OptionAutoCloseOnEnd = true
};
hDocument.LoadHtml("<div><img src='a.gif'><br><hr></div>");
var closedTags  = hDocument.DocumentNode.WriteTo();

XMLWorker is available as a nuget package, or as a separate download at sourceforge.

See here for more advanced usage of XMLWorker.

PQubeTechnologies

Try the following code

    &lt;a href="http://www.abcd.com"&gt;&lt;/a&gt;

Here we are replacing < with &lt; and > with &gt; so my becomes &lt;a&gt; and becomes &lt;/a&gt;.

saktiprasad swain

Here are the step what you need to do

1- Install itext sharp and XMLWorker from Itextsharp from nuget

2-Then put ur design in html(here Invoice.html) with inline CSS

3-Make sure all tag are ended properly like breakpoint or td(here I got error earlier)

4-here image wouldn't show locally so without wasting time I uploaded image in server and gave server Path to access Image.U can research more to run it locally.

Document doc = new Document();

PdfPTable tableLayout = new PdfPTable(4);

PdfWriter writer= PdfWriter.GetInstance(doc, new FileStream(Server.MapPath("~/Admin/T13.pdf"), FileMode.Create));                 

doc.Open();

string contents = File.ReadAllText(Server.MapPath("~/Admin/invoice.html"));

StringReader sr = new StringReader(contents);


XMLWorkerHelper.GetInstance().ParseXHtml(writer, doc, sr);  

doc.Close();
标签
c#
itext
html-parsing
html-agility-pack
xmlworker
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