Render Image Using Response Object RSS

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  atulkatare

  Member

  19 Points

  40 Posts

  Render Image Using Response Object

  Jan 09, 2008 11:30 AM|LINK

  Hi

  i want to render image using Response object for that i am create User Control on Page load crating a bitmap image

  {      

   CaptchaImage ciCaptchaImage = new CaptchaImage(Session["CaptchaImageText"].ToString(), 200, 50, "Century Schoolbook");
          //this.Response.Clear();
          this.Response.ContentType = "image/jpeg";
          ciCaptchaImage.Image.Save(this.Response.OutputStream, ImageFormat.Jpeg);
          writer.Write(ciCaptchaImage);
          ciCaptchaImage.Image.Save(Response.Otputstream, ImageFormat.Jpeg);

  }

  CaptchaImage is class inside that i have create a Bitmap image

  then put this user control on page..

  its show a Image but display in encoded format

  so please help me displaying image ..

  Thanks..

  asp:image and Response object

  • Moved by ecbruck on Jan 09, 2008 12:09 PM
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  Xun Ye - MSF...

  Star

  9272 Points

  792 Posts

  Re: Render Image Using Response Object

  Jan 11, 2008 07:18 AM|LINK

  Hi atulkatare,

  Do your mean you want to output a Bitmap class object by using Response output stream?
  Please feel free to correct me if I have misunderstood your concern.
  Here is a demo about how you can do this, please check the code snippet below.

  //File: Bitmap_Response_Image.aspx.cs
  using System;
  using System.Data;
  using System.Configuration;
  using System.Collections;
  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.Drawing;
  using System.Drawing.Imaging;

  public partial class Bitmap_Response_Image : System.Web.UI.Page
  {
      protected void Page_Load(object sender, EventArgs e)
      {
          string BasePath = Server.MapPath(".");
          Bitmap Img, ImgTemp;

          ImgTemp = new Bitmap(BasePath + "\\images\\test.jpg");
          Img = new Bitmap(ImgTemp, 300, 450);

          Graphics Graph;
          Graph = Graphics.FromImage(Img);

          Img.Save(Response.OutputStream, ImageFormat.Jpeg);
          Graph.DrawImage(Img, 0, 0);

          ImgTemp.Dispose();

          Img.Dispose();
      }
  }

  Regards,
  Xun

  Regards,
  Xun Ye.
  Microsoft Online Community Support
  Please remember to click “Mark as Answer” on the post that
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  • Marked as answer by Xun Ye - MSFT on Jan 14, 2008 06:03 AM
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  narangrajeev

  Member

  22 Points

  5 Posts

  Re: Render Image Using Response Object

  May 04, 2012 06:28 PM|LINK

  This works perfect. I was using a diffrent way earlier which is now not working on latest browsers. Thanks.