Converting Asp.net Webpage to PDF using Itextsharp

Question

I get the below error while converting asp.net webpage to pdf

 

Script control 'UpdateProgress1' is not a registered script control. Script controls must be registered using RegisterScriptControl() before calling RegisterScriptDescriptors().

 

Code behind file as below:

 

protected void btnExport_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);(Exception occurs here)

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();

}

 

Attached the codebehind and aspx pages.

 

Request you to help me in finding the sloution 

 

Thanks and Regards,

Santosh Kumar