Here is my code.......
protected void ExporttoPDF_Click(object sender, EventArgs e)
{
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=ExporttoPDF.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();
}
and i m getting an Error...
RegisterForEventValidation can only be called during Render();
Source Error:An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. |
Stack Trace:[InvalidOperationException: RegisterForEventValidation can only be called during Render();]
System.Web.UI.ClientScriptManager.RegisterForEventValidation(String uniqueId, String argument) +10990382
System.Web.UI.WebControls.TextBox.AddAttributesToRender(HtmlTextWriter writer) +455
System.Web.UI.WebControls.WebControl.RenderBeginTag(HtmlTextWriter writer) +27
System.Web.UI.WebControls.TextBox.Render(HtmlTextWriter writer) +27
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +42
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +411
System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +87
System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +53
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +42
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
System.Web.UI.Page.Render(HtmlTextWriter writer) +38
Microsoft.SharePoint.WebPartPages.WikiEditPage.Render(HtmlTextWriter writer) +207
GridBind.UserDetails.UserDetailsUserControl.ExporttoPDF_Click(Object sender, EventArgs e) +425
System.Web.UI.HtmlControls.HtmlAnchor.OnServerClick(EventArgs e) +115
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +29
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2981 |
Bikky Kumar