“HtmlParser”在当前上下文中不存在

本文介绍了“HtmlParser”在当前上下文中不存在的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 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