Question

I have a problem with printing a chart.

I made a web page contains with some number of controls and one chart, using Microsoft chart control. The issue currently is affecting me in both IE 8 and Firefox 9.0.1

When I made a print by using JavaScript then it prints all controls which are contained in div, but the chart control is not showing on the print preview page which is in same div.

Answer 1

If you are using Microsoft Chart Controls you can try following code for printing :

public void PrintWebControl(Control ctrl, string Script)    
{
    StringWriter stringWrite = new StringWriter(); 
    System.Web.UI.HtmlTextWriter htmlWrite = new System.Web.UI.HtmlTextWriter(stringWrite);

    if (ctrl is WebControl)    
    {
      Unit w = new Unit(100, UnitType.Percentage);
      ((WebControl)ctrl).Width = w;
    }

    Page pg = new Page();
    pg.EnableEventValidation =false;

    if (Script != string.Empty)    
    {
      pg.ClientScript.RegisterStartupScript(pg.GetType(), "PrintJavaScript", Script);
    }

    HtmlForm frm = new HtmlForm();

    pg.Controls.Add(frm);

    frm.Attributes.Add("runat", "server");

    frm.Controls.Add(ctrl);

    pg.DesignerInitialize();

    pg.RenderControl(htmlWrite);

    string strHTML = stringWrite.ToString();

    HttpContext.Current.Response.Clear();

    HttpContext.Current.Response.Write(strHTML);

    HttpContext.Current.Response.Write("<script>window.print();</script>");

    HttpContext.Current.Response.End();

}

Calling :

PrintWebControl(Panel1);

gets you the print of the required chart.