Wednesday, January 14, 2009

How to Print Web Page Controls Using C# 2.0

Create a web form like below. Put all the controls inside one Panel.
print
On click event of the “Print Page” button write below code.
   1:  //Write the below code for click event of the "Print Page" button
   2:      protected void btnPrintPage_Click(object sender,
           EventArgs e)
   3:      {
   4:          Session["ctrl"] = Panel1;
   5:          Control ctrl = (Control)Session["ctrl"];
   6:          PrintWebControl(ctrl);
   7:      }

Use the below namespace
using System.IO;

Create the function PrintWebControl which is calling from the click event of the “Page Print” button.
   1:  public static void PrintWebControl(Control ControlToPrint)
   2:      {
   3:          StringWriter stringWrite = new StringWriter();
   4:          System.Web.UI.HtmlTextWriter htmlWrite = new System.Web.UI.HtmlTextWriter(stringWrite);
   5:          if (ControlToPrint is WebControl)
   6:          {
   7:              Unit w = new Unit(100, UnitType.Percentage); ((WebControl)ControlToPrint).Width = w;
   8:          }
   9:          Page pg = new Page();
  10:          pg.EnableEventValidation = false;
  11:          HtmlForm frm = new HtmlForm();
  12:          pg.Controls.Add(frm);
  13:          frm.Attributes.Add("runat", "server");
  14:          frm.Controls.Add(ControlToPrint);
  15:          pg.DesignerInitialize();
  16:          pg.RenderControl(htmlWrite);
  17:          string strHTML = stringWrite.ToString();
  18:          HttpContext.Current.Response.Clear();
  19:          HttpContext.Current.Response.Write(strHTML);
  20:          HttpContext.Current.Response.Write("<script>window.print();</script>");
  21:          HttpContext.Current.Response.End();
  22:      }

Done!!!! Execute it…Enjoy printing controls….

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