error on server while printing

Question

Hi Sir,

I have been using code for printing the part of web page.Its working fine on local system but showing error on server

I used following code for this.

 

Compilation Error

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. 

Compiler Error Message: CS0103: The name 'PrintHelper' does not exist in the current context

Source Error:

Line 13:         string value=
Line 14:         Request.Form["ctrl"];
Line 15:         PrintHelper.PrintWebControl(value);
Line 16:     }
Line 17: }

Print.aspx.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Runtime.Remoting;

public partial class User_Print : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        Control ctrl = (Control)Session["ctrl"];

        PrintHelper.PrintWebControl(ctrl);

    }

}

Used PrintHelper.cs file under App_Code

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.IO;

using System.Text;

using System.Web.SessionState;

using System.Runtime.Remoting;

public class PrintHelper

{

    public PrintHelper()

    {

    }

    public static void PrintWebControl(Control ctrl)

    {

        PrintWebControl(ctrl, string.Empty);

    }

    public static 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();

    }

}