我有一个webform,其中使用了ajax工具包的HtmlEditorExtender1
。它运行良好。现在我想在单击按钮时使用iTextSharp将整个webform转换为pdf。但是我遇到了以下错误:
Extender control 'HtmlEditorExtender1' is not a registered extender control. Extender controls must be registered using RegisterExtenderControl() before calling RegisterScriptDescriptors().
Parameter name: extenderControl
我认为这与
HtmlEditorExtender1
有关。 <ajaxToolkit:HtmlEditorExtender ID="HtmlEditorExtender1" runat="server" TargetControlID="txtkeyresultforyear" EnableSanitization="false" />
我的网络表格顶部如下所示:
<%@ Page Title="" Language="C#" MasterPageFile="~/ModuleMain.master" AutoEventWireup="true"
ValidateRequest="false" CodeBehind="xyz.aspx.cs" EnableEventValidation = "false" Inherits="abc.xyz" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
这是我在按钮点击时的代码:
protected void btntopdf_Click(object sender, EventArgs e)
{
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=TestPage.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
this.Page.RenderControl(hw);
StringReader sr = new StringReader(sw.ToString());
Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 100f, 0f);
HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
pdfDoc.Open();
htmlparser.Parse(sr);
pdfDoc.Close();
Response.Write(pdfDoc);
Response.End();
}
编辑:
我在以下位置遇到了这个错误:
this.Page.RenderControl(hw);
<asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager>
? - Syed Mhamudul Hasan