multitiff image display only first page

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Hi

I am using ashx handler to display multitiff image

it shows me first page how can retrive image using button click I have 25 pages in the tiff image

my ashx is

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Drawing;
using System.Drawing.Imaging;


namespace WebApplication1
{
    /// <summary>
    /// Summary description for Handler1
    /// </summary>
    public class Handler1 : IHttpHandler
    {

        public void ProcessRequest(HttpContext context)
        {
            string path = context.Server.MapPath("~/image/045237302.tif");
        Image img = Image.FromFile(path);
       img.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
       context.Response.ContentType = "image/tif";
        


        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}

my aspx page is

ASP

<%@ Page Language="C#" %>


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">





<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Untitled Page</title>
   <script runat="server">


    protected void Button1_Click(object sender, EventArgs e)


    {
        //if (PathDirection =!null)
        //int stratpg = 1;
        //if (Request.QueryString["startpg"] !=null)
        Image img = new Image();
        img.ImageUrl = "Handler1.ashx";
        Page.Form.Controls.Add(img);
    }


</script> 

</head>
<body>
    <form id="form1" runat="server">
    <div>
       

        <asp:Button ID="Button1" runat="server" Text="Display Tiff file"  OnClick="Button1_Click"/>
        <asp:Image ID="Image1" ImageUrl="~/Handler1.ashx" runat="server" />
    </div>
    </form>
</body>
</html>

can anybody help me.

I need help reading page by page

Thanks

Mary

Posted 24-Jan-14 3:58am

Mary Abraham

Updated 24-Jan-14 17:10pm

v4

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Comments

Ahmed Bensaid 24-Jan-14 11:51am

Your question is not really clear ... Can you accurately explain your problem ?

Mary Abraham 24-Jan-14 12:38pm

My problem is I have a tiff image which has multipage
when I try to load it is only showing the first page how to get the page count of the file and display one by one.

Mary Abraham 24-Jan-14 15:39pm

Hi I go the page count working but I dont know how to retrive page by page by clicking the button

my ashx page is

namespace WebApplication1
{
///

/// Summary description for Handler1
///

public class Handler1 : IHttpHandler
{

public void ProcessRequest(HttpContext context)
{
string path = context.Server.MapPath("~/image/045237302.tif");
Image img = Image.FromFile(path);

int count = img.GetFrameCount(FrameDimension.Page);
for (int idx = 0; idx < count; idx++);
MemoryStream byteStream = new MemoryStream();

//images.Add(Image.FromStream(byteStream));

img.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
context.Response.ContentType = "image/tif";

}

public bool IsReusable
{
get
{
return false;
}
}
}
}

My Default aspx page is

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Untitled Page</title>
<script runat="server">

protected void Button1_Click(object sender, EventArgs e)

{
//if (!IsPostBack){
Image img = new Image();
img.ImageUrl = "Handler1.ashx";
Page.Form.Controls.Add(img);
}

</script>

</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" Text="Display Tiff file" OnClick="Button1_Click"/>
<asp:Image ID="Image1" width="443px" Height ="380px" ImageUrl="~/Handler1.ashx"
runat="server" Visible="False" />
</div>
<asp:Button ID="Button2" runat="server" Text="Display next page" OnClick="Button1_Click" />
</form>
</body>
</html>

I dont know how to retrive pages by clicking the button it is only loading the first page but I got the count working.

1 solution

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Marc Gabrie · Answer 1 · 2014-01-25T00:26:00

Solution 1

1. You are saving the TIF file as a JPG format on the OutputStream but you set the ContentType to image/tif!!! Make both match!

2. Here is how to get a given "page/frame" inside your tif file http://www.davidloo.com/?p=15[^]

NOTE: GDI+ (i.e. System.Drawing) does not support all tif compression methods so be sure that all your tif files work before relying on it.

Posted 25-Jan-14 0:26am

Marc Gabrie

Comments

Mary Abraham 27-Jan-14 10:45am

Hi

can you help me in creating aspx page www.davidloo.com is windows application
I am able to create windows application but dont know how to create the same in aspx
because dont know what we can use instead of picture box control in asp.net