ASP.NET 控件在后面的代码中无法识别

Question

I am getting the

"The name 'ASP.net control' does not exist in the current context"

Error message. Guys, can you please help me find out the cause of this and how to remedy it!

Am I missing something here??

<%@ Page Title="Amatola Water Activities" Language="C#" MasterPageFile="~/Site.Master"
    AutoEventWireup="true" CodeFile="~/Default.aspx.cs" 
    Inherits="AWActivitiesWeb2.Default" %>

Answer 1

There could be several reasons behind this error, Looking at the <%@ Page %> directive that you shared, you have specified the attribute as CodeFile="~/Default.aspx.cs" Which might be causing this issue because if you specify a CodeFile attribute, the designer.cs file does not regenerates itself. Either you manually specify each control you add into the designer.cs file or you should change the CodeFile attribute to a CodeBehind attribute.

The other issue could be with the control itself, if you won't specify runat="server" on the attribute then you won't get its reference in the Code Behind.

So, Modify your page directive with this line:

<%@ Page Title="Amatola Water Activities" Language="C#"
    MasterPageFile="~/Site.Master" AutoEventWireup="true"
    CodeBehind="~/Default.aspx.cs" Inherits="AWActivitiesWeb2.Default" %>