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我有在轉換HTML到PDF一個prblem使用iTextSharp的轉換HTML到PDF在asp.net
我用於轉換的代碼如下
using iTextSharp.text;
using iTextSharp.text.html.simpleparser;
using iTextSharp.text.pdf;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.IO;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
protected void ConvertToPDFNow()
{
StringWriter sw = new StringWriter();
HtmlTextWriter w = new HtmlTextWriter(sw);
print.RenderControl(w);
string htmWrite = sw.GetStringBuilder().ToString();
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=FileName.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
htmWrite = Regex.Replace(htmWrite, "</?(a|A).*?>", "");
htmWrite = htmWrite.Replace("\r\n", "");
StringReader reader = new StringReader(htmWrite);
Document doc = new Document(PageSize.A4);
HTMLWorker parser = new HTMLWorker(doc);
PdfWriter.GetInstance(doc, Response.OutputStream);
doc.Open();
try
{
parser.Parse(reader);
}
catch (Exception ex)
{ }
finally
{
doc.Close();
}
}
我傳遞的HTML文本其中包含圖像，表格，內嵌樣式，標識。 雖然轉換我收到一個錯誤「對象引用未設置爲實例」在
parser.Parse（reader）;
怎麼辦？
，我要轉換爲PDF格式的HTML文本如下
<div id="print">
<div style="width: 870px;" id="printable">
<div id="dvSoftCopy" style="display: none;">
<img src="http://localhost:56814/Quotation/images/head.jpg" style="width: 100%" />
</div>
<div id="dvHardCopy" style="height: 197.29px;">
</div>
<div style="display: none;">
<table width="100%">
<tr>
<td style="width: 100%; height: 3px;">
<hr style="height: 3px; color: Blue;" />
</td>
</tr>
</table>
</div>
<div class="divBorder">
<table style="color: Blue; font-size: 11px; padding-left: 14px;">
<tr>
<td colspan="2" style="width: 50%;">
To
</td>
<td>
Quote No
</td>
<td style="padding-left: 5px;">
<span id="lblQuoteNo" style="font-weight:bold;">00005</span>
</td>
</tr>
<tr>
<td colspan="2">
The
<span id="lblDesignation">nj</span>
</td>
<td>
Quote Date
</td>
<td style="padding-left: 5px;">
26/04/2012
</td>
</tr>
<tr>
<td colspan="2">
<span id="lblPartyName">PK</span>
</td>
<td>
Inquiry Date
</td>
<td style="padding-left: 5px;">
<span id="lblEnquiryDate">09/09/2010</span>
</td>
</tr>
<tr>
<td colspan="2">
<span id="lblAddress">bhatt</span>
</td>
<td>
Kind Attentions
</td>
<td style="padding-left: 5px;">
<span id="lblContactPerson">123</span>
</td>
</tr>
<tr>
<td>
<span id="lblPCity">AHMEDABAD</span>
</td>
<td>
<span id="lblPPostalCode">333333</span>
</td>
<td>
Phone
</td>
<td style="padding-left: 5px;">
<span id="lblPPhone">787878787</span>
</td>
</tr>
<tr>
<td>
<span id="lblState">GUJARAT</span>
</td>
<td colspan="3">
<span id="lblCountry">PK</span>
</td>
</tr>
</table>
</div>
<div class="divBorder">
<table style="font-size: 11px; padding-left: 14px;">
<tr>
<td>
Dear Sir/Madam
<br />
Thank you for your inquiry, we wish to quote our lowest for the following items.
</td>
</tr>
</table>
</div>
<div style="padding-left: 14px; padding-right: 14px;" class="divBorder">
<div>
<table class="datalist" cellspacing="0" rules="all" border="1" id="grdItemList" style="width:100%;border-collapse:collapse;">
<tr>
<th scope="col">Item</th><th scope="col">Price/Unit</th><th scope="col">Remarks</th><th align="center" scope="col">Image</th>
</tr><tr style="height:100px;">
<td style="width:45%;">
<div style="position: relative; height: 150px;">
<div style="position: absolute;">
<div style="text-transform: uppercase; font-size: 13px;">
<b>
1.
make
PN061549845
SAFTY
</b>
</div>
Belt
<br />
Compliance:NA
</div>
</div>
</td><td valign="top" style="height:100px;width:20%;">
Rs.
<span id="grdItemList_ctl02_lblPrice">381</span>
/
Nos.
</td><td style="height:100px;width:20%;">Markand</td><td valign="middle" style="height:100px;width:25%;">
<img id="grdItemList_ctl02_imgItem" src="http://localhost:56814/Quotation/images/default.jpg" style="height:70px;width:70px;border-width:0px;" />
</td>
</tr>
</table>
</div>
</div>
<div style="padding-left: 14px; padding-right: 12px;" class="divBorder">
<br />
<table class="tableclass">
<tr>
<td width="20%">
<b>Payment Terms</b>
</td>
<td width="20%">
<b>Validity</b>
</td>
<td width="20%">
<b>Sales Tax</b>
</td>
<td width="20%">
<b>Delivery Schedule</b>
</td>
<td width="17%">
<b>Freight</b>
</td>
</tr>
<tr>
<td>
<span id="lblPaymentTerms">7 Days</span>
</td>
<td>
<span id="lblSalesTax">VAT 15%</span>
</td>
<td>
<span id="lblValidity">30 days</span>
</td>
<td>
<span id="lblDelivery"></span>
Days
</td>
<td>
<span id="lblFreight">Paid</span>
</td>
</tr>
</table>
</div>
<div style="padding-left: 14px;" class="divBorder">
<br />
In case of any futher queries please feel free to contact us by E-mail or Phone.
Thanking you and looking forward to the opportunity to serve your esteemed Organisation.
</div>
<div style="padding-left: 14px; border-bottom: solid 1px #858585;" class="divBorder">
<table width="100%">
<tr>
<td align="left">
</td>
<td>
</td>
<td align="right">
<img src="http://localhost:56814/Quotation/images/logo.jpg" />
</td>
</tr>
<tr>
<td colspan="2">
</td>
</tr>
</table>
</div>
</div>
</div>