Error in creating pdf file using iTextSharp - c#

I have one Gridview in my asp .Net project (c#) and i want to export it to pdf
for this purpose i'm using iTextSharp as bellow:
public override void VerifyRenderingInServerForm(Control control)
{ /* Do nothing */ }
protected void Button2_Click1(object sender, EventArgs e)
{
Response.Clear(); //this clears the Response of any headers or previous output
Response.Buffer = true; //ma
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=DataTable.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
ASPxGridView1.RenderControl(hw);
StringReader sr = new StringReader(sw.ToString());
Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
pdfDoc.Open();
htmlparser.Parse(sr);
pdfDoc.Close();
Response.Write(pdfDoc);
Response.End();
}
when i test it , i get this error:
The UNC path should be of the form \server\share
anybody pls help me?

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For more details about it, see this answer: https://stackoverflow.com/a/9616429/604232

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