how to print same structure of gridview data in print ?

ExamName	ExamDate	Telugu	Hindi	English	Mathematics	Science	Social Studies	Total	%	
MODEL TEST 1	06-01-14	48/50	49/50	47/50	 48/50	 49/50	 47/50	 288/300	96	
MODEL TEST 2	03-02-14	46/50	40/50	48/50	 50/50	 42/50	 43/50	 269/300	89.67	
MODEL TEST 3	17-02-14	43/50	43/50	45/50	 48/50	 49/50	 43/50	 271/300	90.33	
MODEL TEST 4	10-03-14	35/50	36/50	37/50	 38/50	 35/50	 38/50	 219/300	73	
MODEL TEST 5	24-03-14	42/50	43/50	44/50	 45/50	 43/50	 42/50	 259/300	86.33	
MODEL TEST 6	31-03-14	35/50	36/50	37/50	 45/50	 42/50	 48/50	 243/300	81	
MODEL TEST 7	07-04-14	40/50	44/50	45/50	 46/50	 41/50	 48/50	 264/300	88	
MODEL TEST 8	14-04-14	47/50	45/50	46/50	 48/50	 49/50	 42/50	 277/300	92.33	1

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();

}