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error message "Could not load type" for a .NET 1.1 asp project converted to VS 2008 .NET 3.5

Posted on 2008-09-30
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Last Modified: 2013-12-17
I am working with some code that was developed in the year 2004. So I suppose that it is .NET 1.1 code.  
I created a visual studio 2008 project but am getting an error when I try and build the code. . One obvious problem appears to be that the attribute "CodeFile" is being used. Please check out the code I am providing and tell me if you can spot the problem which is creating the bug. Here is the error message I am getting:
Error      13 Could not load type 'CaptchaImage.JpegImage'.      C:\America\JpegImage.aspx      

Here is the .aspx code:

<%@ Page language="c#" Codebehind="JpegImage.aspx.cs" AutoEventWireup="false" Inherits="CaptchaImage.JpegImage" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >

<html>

<head>

<title>JpegImage</title>

<meta name="GENERATOR" Content="Microsoft Visual Studio 7.0">

<meta name="CODE_LANGUAGE" Content="C#">

<meta name="vs_defaultClientScript" content="JavaScript">

<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">

</head>

<body>

<form id="JpegImage" method="post" runat="server">

</form>

</body>

</html>

----------------------------Below is the C# code--------

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Drawing.Imaging;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;
 

namespace CaptchaImage

{

 public class JpegImage : System.Web.UI.Page

 {

	private void Page_Load(object sender, System.EventArgs e)

		{

// Create a CAPTCHA image using the text stored in the Session object.

CaptchaImage ci = new CaptchaImage(this.Session["CaptchaImageText"].ToString(), 200, 50, "Century Schoolbook");

// Change the response headers to output a JPEG image.

	this.Response.Clear();

	this.Response.ContentType = "image/jpeg";
 

	// Write the image to the response stream in JPEG format.

	ci.Image.Save(this.Response.OutputStream, ImageFormat.Jpeg);
 

	// Dispose of the CAPTCHA image object.

	ci.Dispose();

		}
 

#region Web Form Designer generated code

override protected void OnInit(EventArgs e)

{

//

// CODEGEN: This call is required by the ASP.NET Web Form Designer.

//

InitializeComponent();

base.OnInit(e);

}

		

/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

	private void InitializeComponent()

	{    

	this.Load += new System.EventHandler(this.Page_Load);

	}

		#endregion

	}

}

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Question by:brgdotnet
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by:
Gyanendra Singh earned 130 total points
Comment Utility
All you have to do is change the line 1 in the aspx files: replace the keyword Codebehind="..." with Codefile="...", also do the following:

1. Rename the namespace CaptchaImage for anything else, because there is a class that hass the same name CaptchaImage. You must change namespace also in the aspx files (line 1) from Inherits="CaptchaImage._Default" to Inherits="TheNewNamespace._Default"

2. Change the declaration of classes from public class ClassName to public partial class ClassName, ie: public partial class JpegImage

3. Move class CaptchaImage to App_code folder.

4. Rename the form in JpegImage.aspx to form1 or anything else.

5. Remove the META tags in aspx files.
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Author Closing Comment

by:brgdotnet
Comment Utility
Thank you. Great job!
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LVL 16

Expert Comment

by:Gyanendra Singh
Comment Utility
your welcome
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