Code behind file not recognizing controls in *.ascx

c# asp.net ascx
AaronLS picture AaronLS · May 21, 2010 · Viewed 25.9k times · Source

I have a QuestionControl.ascx and a QuestionControl.ascx.cs code behind file I copied to a new project. When I build the project any references in the code behind file to controls declared in the ascx gives me this error:

'QuestionControl' does not contain a definition for 'rdbtnlstQuestion1' and no extension method 'rdbtnlstQuestion1' accepting a first argument of type 'QuestionControl' could be found (are you missing a using directive or an assembly reference?)

This is at the top of my *.ascx:

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="QuestionControl.ascx.cs" Inherits="QuestionControl" %>

I've also tried CodeBehind:

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="QuestionControl.ascx.cs" Inherits="QuestionControl" %>

This is the top of my class in the codebehind file, it is not contained in a namespace:

public partial class QuestionControl : System.Web.UI.UserControl
{

Answer

Jason picture Jason · May 21, 2010

Try deleting your designer file. VS.NET should recreate it for you when you open the ascx file. I've had problems like this in the past where the designer gets out-of-sync for some reason, and deleting it usually fixes the problem.

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