Export pie chart to powerpoint using c# - asp.net

Question

i am trying to Export a pie chart to powerpoint slide uisng c# but not found any similar article which can help me...
please provide me some example or provide some useful link which can help me in achieving this functionality easily...
thanks,
Aman

Answer 1

we are using hipdf library but this is paid and we are converting html to image first and then showing this image on ppt slide. You can also do it by using inkscape exe file

Answer 2

In button_click event write following code.
GridView1.AllowPaging = false; //write this code only if paging is enabled.
GridView1.DataBind(); //write this code only if paging is enabled.
Response.Clear();
Response.AddHeader("content-disposition", "attachment;filename=FileName.ppt");//for text file write FileName.txt
Response.Charset = "";
// If you want the option to open the Excel file without saving than comment out the line below
// Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.ContentType = "application/vnd.ppt";\\for text file write vnd.txt
System.IO.StringWriter stringWrite = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
GridView1.RenderControl(htmlWrite);
Response.Write(stringWrite.ToString());
Response.End();
GridView1.AllowPaging = true; //write this code only if paging is enabled.
GridView1.DataBind();//write this code only if paging is enabled.
You will have to override function of VerifyRenderingInServerForm like this
public override void VerifyRenderingInServerForm(Control control)
{
//Keep it empty
}
And to avoid exception you have to set property of
<%# Page Language="C#" EnableEventValidation="false" %>