Taking reference of my article: How to export GridView data to PDF file in ASP.Net
I have modified the code.
protected void ExportToPDF(object sender, EventArgs e)
{
Document pdfDoc = new Document(PageSize.A2, 10f, 10f, 10f, 0f);
PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
pdfDoc.Open();
for (int i = 1; i <= GridView1.PageCount; i++)
{
GridView1.PageIndex = i;
GridView1.PagerSettings.Visible = false;
this.BindGrid();
using (StringWriter sw = new StringWriter())
{
using (HtmlTextWriter hw = new HtmlTextWriter(sw))
{
GridView1.RenderControl(hw);
HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
StringReader sr = new StringReader(sw.ToString());
htmlparser.Parse(sr);
}
}
pdfDoc.NewPage();
}
pdfDoc.Close();
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=GridViewExport.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Write(pdfDoc);
Response.End();
}