How to solve the following problem? I have renamed a file from ‘OldMailsCollection.aspx’ to

Question

0

Editorial Team

Asked: May 12, 20262026-05-12T08:21:10+00:00 2026-05-12T08:21:10+00:00

How to solve the following problem? I have renamed a file from ‘OldMailsCollection.aspx’ to

0

How to solve the following problem?

I have renamed a file from ‘OldMailsCollection.aspx’ to ‘StudentOldMail.aspx’.

The code-behind file is renamed automatically. I have also updated the reference.

But when I compile the solution a file with a random name opens up. This file is from the directory

C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files

I have deleted the the file and built the solution again. But the file opens up again and again.

And the following Error message is shown:

Error   1   ASP.student_studentoldmail_aspx.GetTypeHashCode(): no suitable method found to override c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\web\c0297e2c\521e6c\App_Web_0cva2jmg.6.cs 652

Error   2   ASP.student_studentoldmail_aspx.ProcessRequest(System.Web.HttpContext): no suitable method found to override    c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\web\c0297e2c\521e6c\App_Web_0cva2jmg.6.cs 657

Error   3   ASP.student_studentoldmail_aspx does not implement interface member System.Web.IHttpHandler.IsReusable
c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\web\c0297e2c\521e6c\App_Web_0cva2jmg.6.cs 142

the file is :

#pragma checksum "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx" "{406ea660-64cf-4c82-b6f0-42d48172a799}" "C82498E0638F0D0BB211B2109BA09CD5"
//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//     Runtime Version:2.0.50727.1433
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------



public partial class Student_OldMailsCollection : System.Web.SessionState.IRequiresSessionState {


    #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
    protected global::System.Web.UI.WebControls.GridView GridView1;

    #line default
    #line hidden


    #line 18 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
    protected global::System.Web.UI.WebControls.ObjectDataSource MailsBySessionObjectDataSource;

    #line default
    #line hidden

    protected System.Web.Profile.DefaultProfile Profile {
        get {
            return ((System.Web.Profile.DefaultProfile)(this.Context.Profile));
        }
    }

    protected System.Web.HttpApplication ApplicationInstance {
        get {
            return ((System.Web.HttpApplication)(this.Context.ApplicationInstance));
        }
    }
}
namespace ASP {

    #line 284 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Web.Security;

    #line default
    #line hidden

    #line 281 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Web;

    #line default
    #line hidden

    #line 283 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Web.SessionState;

    #line default
    #line hidden

    #line 279 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Text;

    #line default
    #line hidden

    #line 4 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
    using System.Web.UI.WebControls;

    #line default
    #line hidden

    #line 285 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Web.Profile;

    #line default
    #line hidden

    #line 276 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Collections;

    #line default
    #line hidden

    #line 4 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
    using System.Web.UI.WebControls.WebParts;

    #line default
    #line hidden

    #line 278 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Configuration;

    #line default
    #line hidden

    #line 275 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System;

    #line default
    #line hidden

    #line 1 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
    using ASP;

    #line default
    #line hidden

    #line 282 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Web.Caching;

    #line default
    #line hidden

    #line 286 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Web.UI;

    #line default
    #line hidden

    #line 277 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Collections.Specialized;

    #line default
    #line hidden

    #line 280 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Text.RegularExpressions;

    #line default
    #line hidden

    #line 289 "c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\web.config"
    using System.Web.UI.HtmlControls;

    #line default
    #line hidden


    [System.Runtime.CompilerServices.CompilerGlobalScopeAttribute()]
    public class student_studentoldmail_aspx : global::Student_OldMailsCollection, System.Web.IHttpHandler {

        private static bool @__initialized;

        private static object @__stringResource;

        private static object @__fileDependencies;

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        public student_studentoldmail_aspx() {
            string[] dependencies;

            #line 912304 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx.cs"
            ((global::System.Web.UI.Page)(this)).AppRelativeVirtualPath = "~/Student/StudentOldMail.aspx";

            #line default
            #line hidden
            if ((global::ASP.student_studentoldmail_aspx.@__initialized == false)) {
                global::ASP.student_studentoldmail_aspx.@__stringResource = this.ReadStringResource();
                dependencies = new string[4];
                dependencies[0] = "~/Student/StudentOldMail.aspx";
                dependencies[1] = "~/MasterPage.master";
                dependencies[2] = "~/MasterPage.master.cs";
                dependencies[3] = "~/Student/StudentOldMail.aspx.cs";
                global::ASP.student_studentoldmail_aspx.@__fileDependencies = this.GetWrappedFileDependencies(dependencies);
                global::ASP.student_studentoldmail_aspx.@__initialized = true;
            }
            this.Server.ScriptTimeout = 30000000;
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private global::System.Web.UI.WebControls.BoundField @__BuildControl__control3() {
            global::System.Web.UI.WebControls.BoundField @__ctrl;

            #line 10 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl = new global::System.Web.UI.WebControls.BoundField();

            #line default
            #line hidden

            #line 10 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.DataField = "MailCode";

            #line default
            #line hidden

            #line 10 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.HeaderText = "MailCode";

            #line default
            #line hidden

            #line 10 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.SortExpression = "MailCode";

            #line default
            #line hidden
            return @__ctrl;
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private global::System.Web.UI.WebControls.BoundField @__BuildControl__control4() {
            global::System.Web.UI.WebControls.BoundField @__ctrl;

            #line 11 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl = new global::System.Web.UI.WebControls.BoundField();

            #line default
            #line hidden

            #line 11 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.DataField = "MailDate";

            #line default
            #line hidden

            #line 11 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.HeaderText = "MailDate";

            #line default
            #line hidden

            #line 11 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.SortExpression = "MailDate";

            #line default
            #line hidden
            return @__ctrl;
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private global::System.Web.UI.WebControls.BoundField @__BuildControl__control5() {
            global::System.Web.UI.WebControls.BoundField @__ctrl;

            #line 12 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl = new global::System.Web.UI.WebControls.BoundField();

            #line default
            #line hidden

            #line 12 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.DataField = "SenderUsername";

            #line default
            #line hidden

            #line 12 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.HeaderText = "SenderUsername";

            #line default
            #line hidden

            #line 12 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.SortExpression = "SenderUsername";

            #line default
            #line hidden
            return @__ctrl;
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private global::System.Web.UI.WebControls.BoundField @__BuildControl__control6() {
            global::System.Web.UI.WebControls.BoundField @__ctrl;

            #line 13 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl = new global::System.Web.UI.WebControls.BoundField();

            #line default
            #line hidden

            #line 13 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.DataField = "MailSubject";

            #line default
            #line hidden

            #line 13 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.HeaderText = "MailSubject";

            #line default
            #line hidden

            #line 13 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.SortExpression = "MailSubject";

            #line default
            #line hidden
            return @__ctrl;
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private global::System.Web.UI.WebControls.BoundField @__BuildControl__control7() {
            global::System.Web.UI.WebControls.BoundField @__ctrl;

            #line 14 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl = new global::System.Web.UI.WebControls.BoundField();

            #line default
            #line hidden

            #line 14 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.DataField = "MailContent";

            #line default
            #line hidden

            #line 14 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.HeaderText = "MailContent";

            #line default
            #line hidden

            #line 14 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.SortExpression = "MailContent";

            #line default
            #line hidden
            return @__ctrl;
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private global::System.Web.UI.WebControls.BoundField @__BuildControl__control8() {
            global::System.Web.UI.WebControls.BoundField @__ctrl;

            #line 15 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl = new global::System.Web.UI.WebControls.BoundField();

            #line default
            #line hidden

            #line 15 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.DataField = "ReceiverUsername";

            #line default
            #line hidden

            #line 15 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.HeaderText = "ReceiverUsername";

            #line default
            #line hidden

            #line 15 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.SortExpression = "ReceiverUsername";

            #line default
            #line hidden
            return @__ctrl;
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private void @__BuildControl__control2(System.Web.UI.WebControls.DataControlFieldCollection @__ctrl) {
            global::System.Web.UI.WebControls.BoundField @__ctrl1;

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl1 = this.@__BuildControl__control3();

            #line default
            #line hidden

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.Add(@__ctrl1);

            #line default
            #line hidden
            global::System.Web.UI.WebControls.BoundField @__ctrl2;

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl2 = this.@__BuildControl__control4();

            #line default
            #line hidden

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.Add(@__ctrl2);

            #line default
            #line hidden
            global::System.Web.UI.WebControls.BoundField @__ctrl3;

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl3 = this.@__BuildControl__control5();

            #line default
            #line hidden

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.Add(@__ctrl3);

            #line default
            #line hidden
            global::System.Web.UI.WebControls.BoundField @__ctrl4;

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl4 = this.@__BuildControl__control6();

            #line default
            #line hidden

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.Add(@__ctrl4);

            #line default
            #line hidden
            global::System.Web.UI.WebControls.BoundField @__ctrl5;

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl5 = this.@__BuildControl__control7();

            #line default
            #line hidden

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.Add(@__ctrl5);

            #line default
            #line hidden
            global::System.Web.UI.WebControls.BoundField @__ctrl6;

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl6 = this.@__BuildControl__control8();

            #line default
            #line hidden

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.Add(@__ctrl6);

            #line default
            #line hidden
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private global::System.Web.UI.WebControls.GridView @__BuildControlGridView1() {
            global::System.Web.UI.WebControls.GridView @__ctrl;

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl = new global::System.Web.UI.WebControls.GridView();

            #line default
            #line hidden
            this.GridView1 = @__ctrl;
            @__ctrl.TemplateControl = this;
            @__ctrl.ApplyStyleSheetSkin(this);

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.ID = "GridView1";

            #line default
            #line hidden

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.DataSourceID = "MailsBySessionObjectDataSource";

            #line default
            #line hidden

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.AutoGenerateColumns = false;

            #line default
            #line hidden

            #line 8 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            this.@__BuildControl__control2(@__ctrl.Columns);

            #line default
            #line hidden
            return @__ctrl;
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private global::System.Web.UI.WebControls.Parameter @__BuildControl__control10() {
            global::System.Web.UI.WebControls.Parameter @__ctrl;

            #line 21 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl = new global::System.Web.UI.WebControls.Parameter();

            #line default
            #line hidden

            #line 21 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.Name = "username";

            #line default
            #line hidden

            #line 21 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.Type = System.TypeCode.String;

            #line default
            #line hidden
            return @__ctrl;
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private void @__BuildControl__control9(System.Web.UI.WebControls.ParameterCollection @__ctrl) {
            global::System.Web.UI.WebControls.Parameter @__ctrl1;

            #line 18 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl1 = this.@__BuildControl__control10();

            #line default
            #line hidden

            #line 18 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.Add(@__ctrl1);

            #line default
            #line hidden
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private global::System.Web.UI.WebControls.ObjectDataSource @__BuildControlMailsBySessionObjectDataSource() {
            global::System.Web.UI.WebControls.ObjectDataSource @__ctrl;

            #line 18 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl = new global::System.Web.UI.WebControls.ObjectDataSource();

            #line default
            #line hidden
            this.MailsBySessionObjectDataSource = @__ctrl;
            @__ctrl.TemplateControl = this;

            #line 18 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.ID = "MailsBySessionObjectDataSource";

            #line default
            #line hidden

            #line 18 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.SelectMethod = "GetMailsByUsername";

            #line default
            #line hidden

            #line 18 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.TypeName = "Ice_Web_Portal.BO.Mail";

            #line default
            #line hidden

            #line 18 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            this.@__BuildControl__control9(@__ctrl.SelectParameters);

            #line default
            #line hidden
            return @__ctrl;
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private void @__BuildControlContent1(System.Web.UI.Control @__ctrl) {
            System.Web.UI.IParserAccessor @__parser = ((System.Web.UI.IParserAccessor)(@__ctrl));

            #line 4 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__parser.AddParsedSubObject(new System.Web.UI.LiteralControl("\r\n    <table style=\"width: 283px\">\r\n        <tr>\r\n            <td>\r\n             " +
                        "   "));

            #line default
            #line hidden
            global::System.Web.UI.WebControls.GridView @__ctrl1;

            #line 4 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl1 = this.@__BuildControlGridView1();

            #line default
            #line hidden

            #line 4 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__parser.AddParsedSubObject(@__ctrl1);

            #line default
            #line hidden

            #line 4 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__parser.AddParsedSubObject(new System.Web.UI.LiteralControl("\r\n                "));

            #line default
            #line hidden
            global::System.Web.UI.WebControls.ObjectDataSource @__ctrl2;

            #line 4 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl2 = this.@__BuildControlMailsBySessionObjectDataSource();

            #line default
            #line hidden

            #line 4 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__parser.AddParsedSubObject(@__ctrl2);

            #line default
            #line hidden

            #line 4 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__parser.AddParsedSubObject(this.CreateResourceBasedLiteralControl(1516, 404, true));

            #line default
            #line hidden
        }

        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private void @__BuildControlTree(student_studentoldmail_aspx @__ctrl) {

            #line 1 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.MasterPageFile = "~/MasterPage.master";

            #line default
            #line hidden

            #line 1 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__ctrl.Title = "Untitled Page";

            #line default
            #line hidden

            #line 1 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            this.InitializeCulture();

            #line default
            #line hidden

            #line 4 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            this.AddContentTemplate("ContentPlaceHolder1", new System.Web.UI.CompiledTemplateBuilder(new System.Web.UI.BuildTemplateMethod(this.@__BuildControlContent1)));

            #line default
            #line hidden
            System.Web.UI.IParserAccessor @__parser = ((System.Web.UI.IParserAccessor)(@__ctrl));

            #line 1 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx"
            @__parser.AddParsedSubObject(new System.Web.UI.LiteralControl("\r\n\r\n"));

            #line default
            #line hidden
        }


        #line 912304 "F:\CS\_WEB_SITES_\ice web portal\Ice_Web_Portal_v_2_0\WEb\Student\StudentOldMail.aspx.cs"
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        protected override void FrameworkInitialize() {
            base.FrameworkInitialize

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1 Answer

Editorial Team · Answer 1 · 2026-05-12T08:21:10+00:00

Editorial Team

2026-05-12T08:21:10+00:00Added an answer on May 12, 2026 at 8:21 am

Check the Inherits attribute of the aspx page’s @Page directive and make sure it matches the class name in the codebehind. Sometimes this error comes when it is still pointing to the old class name.

See: Somebody else with this error.

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