“The name xxx does not exist in the current context” after adding LoginView

Question

I have a simple, single-page in ASP.NET (C#). I wanted to add login control, so I just added LoginView as follows:

<form id="form1" runat="server">

<asp:LoginView ID="LoginView1" runat="server">

    <AnonymousTemplate>
        <asp:Login ID="Login1" runat="server">
        </asp:Login>
    </AnonymousTemplate>

    <LoggedInTemplate>
        ... here I put all the page elements (buttons, grid views, etc.)
    </LoggedInTemplate>

</asp:LoginView>   

</form>

When I run my project I get compilation errors in my code-behing file:

The name xxxx does not exist in the current context

What am I doing wrong? I'm new in ASP.NET, so probably it is some stupid mistake I make.

Answer 1

I have found this as the solution for my problem. I can use this, to get my objects.

Label Label1 = (Label)LoginView1.FindControl("Label1");

I don't know if it is the only solution. Maybe someone has better.

Answer 2

There are several possible causes of this problem.

One is that you have a backup copy of this same file somewhere in your project.

Another is that two different ASPX files are using the same CS file for code-behind.

A third is that you forgot to include System.Web or some other file you need.

Hope one of these helps!

Answer 3

My solution: This is a case copy project of web-application. solution: Right click project in visualstudio choose "Convert to web application". this is a good solution