如何使用 C# 从 asp.net 中的 .htm 页面创建 PDF 文件 [英] How to create the PDF file from the .htm page in asp.net using C#

问题描述

我有一个 .htm 页面，其中设计位于带有 css 文件的页面中.现在我想将此 .htm 页面创建为 PDF 文档.那么我如何在 c# 中使用 ASP.Net 来做到这一点.

解决方案

您可以使用 itext 锐化.

导入这些

使用 iTextSharp.text.html.simpleparser;使用 iTextSharp.text.pdf；使用 iTextSharp.text;

接下来是添加这个方法

public void ConvertHtmlStringToPDF(){StringBuilder sb = new StringBuilder();StringWriter tw = new StringWriter(sb);HtmlTextWriter hw = new HtmlTextWriter(tw);///这是来自webform的面板pnlPDF.RenderControl(hw);字符串 htmlDisplayText = sb.ToString();文档文档 = 新文档();MemoryStream ms = new MemoryStream();PdfWriter writer = PdfWriter.GetInstance(document, ms);StringReader se = new StringReader(htmlDisplayText);HTMLWorker obj = new HTMLWorker(document);文档.Open();obj.Parse(se);//第 5 步:我们关闭文档文档.关闭();Response.Clear();Response.AddHeader("content-disposition", "attachment; filename=report.pdf");Response.ContentType = "申请/pdf";Response.Buffer = true;Response.OutputStream.Write(ms.GetBuffer(), 0, ms.GetBuffer().Length);Response.OutputStream.Flush();Response.End();}

然后在您的网络表单中，您需要有一个包含 html 的面板.这样做的目的是让你能够在服务器端调用它.

<div>html内容

</asp:面板>

I have a .htm page where the design is in the page with css files. and now i want to create this .htm page to PDF document. So how can i do this using ASP.Net in c#.

解决方案

You can use itext sharp.

import these

using iTextSharp.text.html.simpleparser;
using iTextSharp.text.pdf;
using iTextSharp.text;

Next is add this method

public void ConvertHtmlStringToPDF()
{
    StringBuilder sb = new StringBuilder(); 
    StringWriter tw = new StringWriter(sb); 
    HtmlTextWriter hw = new HtmlTextWriter(tw); 

    ///This is the panel from the webform
    pnlPDF.RenderControl(hw);
    string htmlDisplayText = sb.ToString(); 
    Document document = new Document();
    MemoryStream ms = new MemoryStream();
    PdfWriter writer = PdfWriter.GetInstance(document, ms);
    StringReader se = new StringReader(htmlDisplayText);
    HTMLWorker obj = new HTMLWorker(document);
    document.Open();
    obj.Parse(se);
    // step 5: we close the document
    document.Close();
    Response.Clear();
    Response.AddHeader("content-disposition", "attachment; filename=report.pdf");
    Response.ContentType = "application/pdf";
    Response.Buffer = true;
    Response.OutputStream.Write(ms.GetBuffer(), 0, ms.GetBuffer().Length);
    Response.OutputStream.Flush();
    Response.End();
}

Then in your webform you need to have a panel which contains the html. The purpose of this is for you to be able to call it on the server side.

<asp:Panel ID="pnlPDF" runat="server">
    <div>
      html contents
    </div>
</asp:Panel>

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