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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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Accepted Solution

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Gyanendra Singh earned 520 total points
ID: 22607026
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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LVL 2

Author Closing Comment

by:brgdotnet
ID: 31501602
Thank you. Great job!
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LVL 16

Expert Comment

by:Gyanendra Singh
ID: 22643424
your welcome
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