“HtmlParser”在当前上下文中不存在 [英] 'HtmlParser' does not exist in the current context

问题描述

当im Build然后生成此错误...



'HtmlParser'在当前上下文中不存在





所以plz给我一些关于这个错误的代码或信息....

解决方案

使用System;

使用System.Collections;

使用System.Configuration;

使用System.Data;

使用System。 Linq;

使用System.Web;

使用System.Web.Security;

使用System.Web.UI;

使用System.Web.UI.HtmlControls;

使用System.Web.UI.WebControls;

使用System.Web.UI.WebControls.WebParts;

使用System.Xml.Linq;

使用System.IO;

使用iTextSharp.text;

使用iTextSharp。 text.pdf;

使用iTextSharp.text.html;











protected void Unnamed1_Click（object sender，EventArgs e）

{

HtmlForm form = new HtmlForm（）;

form.Controls.Add（GridView1）;

StringWriter sw = new StringWriter（）;

HtmlTextWriter hTextWriter = new HtmlTextWriter（sw）;

form.Controls [0] .RenderControl（hTextWriter）;

string html = sw.ToString（）;

Document Doc = new Document（）;



PdfWriter.GetInstance（Doc，new FileStream（Environment.GetFolderPath

（环境） .SpecialFolder.Desktop）+\\abc.pdf，FileMode.Create））;

Doc.Open（）;



Chunk c = new Chunk（使用iTextSharp \ n将GridView导出为PDF，FontFactory.GetFont（Verdana，15））;

段落p = new段落（）;

p.Alignment = Element.ALIGN_CENTER;

p.Add（c）;

Chunk chunk1 = new Chunk（Example\\\
， FontFactory.GetFont（Verdana，8））;

段落p1 =新段落（）;

p1.Alignment = Element.ALIGN_RIGHT;

p1.Add（chunk1）;



Doc.Add（p）;

Doc.Add（p1）;



System.Xml.XmlTextReader xmlReader =

新的System.Xml.XmlTextReader（new StringReader（html））;

HtmlParser.Parse（Doc，xmlReader）;





Doc.Close（）;

string Path = Environment.GetFolderPath（Environment.SpecialFolder.Desktop）+\\ abc.pdf ;



ShowPdf（路径）;

}



private void ShowPdf （字符串路径）

{

Response.ClearContent（）;

Response.ClearHeaders（）;

回复.ContentType =application / pdf;

Response.AddHeader（Content-Disposition，附件; filename =+ strS）;

Response.TransmitFile（strS）;

Response.End（）;

//Response.WriteFile（ strS）;

Response.Flush（）;

Response.Clear（）;



}

您好
 
更改此行代码
 System.Xml.XmlTextReader xmlReader = 
 new System.Xml.XmlTextReader （new StringReader（html））; 
 HtmlParser.Parse（Doc，xmlReader）; 
到这一个
 
 HTMLWorker worker = new HTMLWorker（Doc）; 
 worker .Parse（new StringReader（html））; 
 Doc.Close（）; 
确保将iTextSharp.text.html.simpleparser添加为HTMLWorker的名称空间
 
 Chukse 

when i m Build then generated this error...

" 'HtmlParser' does not exist in the current context "


so plz give me some code or information regarding this error....

解决方案

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.text.html;





protected void Unnamed1_Click(object sender, EventArgs e)
{
HtmlForm form = new HtmlForm();
form.Controls.Add(GridView1);
StringWriter sw = new StringWriter();
HtmlTextWriter hTextWriter = new HtmlTextWriter(sw);
form.Controls[0].RenderControl(hTextWriter);
string html = sw.ToString();
Document Doc = new Document();

PdfWriter.GetInstance(Doc, new FileStream(Environment.GetFolderPath
(Environment.SpecialFolder.Desktop) + "\\abc.pdf", FileMode.Create));
Doc.Open();

Chunk c = new Chunk("Export GridView to PDF Using iTextSharp \n", FontFactory.GetFont("Verdana", 15));
Paragraph p = new Paragraph();
p.Alignment = Element.ALIGN_CENTER;
p.Add(c);
Chunk chunk1 = new Chunk("Example\n", FontFactory.GetFont("Verdana", 8));
Paragraph p1 = new Paragraph();
p1.Alignment = Element.ALIGN_RIGHT;
p1.Add(chunk1);

Doc.Add(p);
Doc.Add(p1);

System.Xml.XmlTextReader xmlReader =
new System.Xml.XmlTextReader(new StringReader(html));
HtmlParser.Parse(Doc, xmlReader);


Doc.Close();
string Path = Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "\\abc.pdf";

ShowPdf(Path);
}

private void ShowPdf(string Path)
{
Response.ClearContent();
Response.ClearHeaders();
Response.ContentType = "application/pdf";
Response.AddHeader("Content-Disposition", "attachment; filename=" + strS);
Response.TransmitFile(strS);
Response.End();
//Response.WriteFile(strS);
Response.Flush();
Response.Clear();

}

Hi

Change this line of code
System.Xml.XmlTextReader xmlReader =
            new System.Xml.XmlTextReader(new StringReader(html));
            HtmlParser.Parse(Doc, xmlReader);
To this one

HTMLWorker worker = new HTMLWorker(Doc);
    worker.Parse(new StringReader(html));
    Doc.Close();
Make sure to add iTextSharp.text.html.simpleparser as namespace for HTMLWorker

Chukse

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