A server side object cannot be recognized in aspx page

Question

Aspx

<a href="signUp.aspx" class="nav-link w-nav-link"><%=Account%></a>

aspx opening

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="contact.aspx.cs" Inherits="RapidTyper.contact" %>

code behind

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;

    namespace RapidTyper
    {
        public partial class contact : System.Web.UI.Page
        {
            public string Account = "Sign In";
            protected void Page_Load(object sender, EventArgs e)
            {
                if (Session["user"] != null)
                {
                    Account = "Account";
                }
            }
        }
    }

The problem: the Account in the aspx is not recognized and returns the error : "The name 'Account' does not exist in the current context"

Please share the first three lines of the aspx. – mjwills Oct 04 '20 at 23:26 — mjwills, Oct 04 '20 at 23:26
Have you recompiled the app? – mjwills Oct 04 '20 at 23:26 — mjwills, Oct 04 '20 at 23:26
this.Account also doesn't work – נצר בן ראובן Oct 04 '20 at 23:42 — נצר בן ראובן, Oct 04 '20 at 23:42

Jamshaid K. · Accepted Answer · 2020-10-04T23:58:44.263

0

This error goes away when you compile and run your project. But in case you want not to have it without compiling then the fix is to change your CodeBehind attribute to CodeFile attribute (not recommended) in the Page directive in your ASPX page (the first line in aspx). Here is an SO thread explaining the difference between these attributes.

Update
Since, referencing the properties from CodeBehind in aspx page looks easier with <%%> syntax but it has its limitations, such as, you cannot retrieve the values until the page is fully posted back to the server, if you use it inside an UpdatePanel it might throw some exceptions.

It is always better to set such values from CodeBehind like, if you make your anchor element run at server and then set it's InnerText property On Page_Load event, then it will be an efficient approach. i.e:

<a href="signUp.aspx" class="nav-link w-nav-link" runat="server" id="aSignup"></a>

Now in your code behind on Page_Load event do:

public string Account = "Sign In";
protected void Page_Load(object sender, EventArgs e)
{
    if(!Page.IsPostback)
    {
        aSignup.InnerText = Account;
    }

}

edited Oct 04 '20 at 23:58

answered Oct 04 '20 at 23:41

Jamshaid K.

3,555
1
27
42

I have tried the updated answer but it is returning an error in the code behind: The name 'aSignup' does not exist in the current context. – נצר בן ראובן Oct 05 '20 at 00:08
You should give it the id, see my `aspx` markup. I have an attribute in the anchor element as `id="aSignup" runat="server"` – Jamshaid K. Oct 05 '20 at 00:10
yeah, I konw, I did it and it still doensn't work. – נצר בן ראובן Oct 05 '20 at 00:38
That maybe because you would still be using `CodeFile`, If you are changing the way you do that, you should change that to `CodeBehind` attribute so the `designer.cs` file can be rebuilt. – Jamshaid K. Oct 05 '20 at 03:08
No, I have tried it in another page which is still has the CodeBehind attribute: `<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="learn.aspx.cs" Inherits="RapidTyper.learn" %>` `` – נצר בן ראובן Oct 05 '20 at 12:18
Please post a new question with the full aspx page code. – Jamshaid K. Oct 05 '20 at 20:40
https://stackoverflow.com/questions/64201611/aspx-element-with-runat-server-is-not-recognized-in-the-server-by-id – נצר בן ראובן Oct 06 '20 at 00:05

A server side object cannot be recognized in aspx page

1 Answers1