Cannot convert type ASP.login_aspx to System.Web.UI.WebControls.Login

Cannot convert type ASP.login_aspx to System.Web.UI.WebControls.Login

Problem

You get following error when you run ASP.Net login page

1.Cannot convert type ASP.login_aspx to System.Web.UI.WebControls.Login

Solution

• Go to your login.aspx.cs code behind file.
• Find line where page class is defined.
  1.public partial class Login : System.Web.UI.Page
• Rename this class to something else. For example,
  1.public partial class clsLogin : System.Web.UI.Page
• Now go to your webform code in login.aspx file. And change inherit attribute to point to clsLogin class.
  1.<%@ Page Language="C#" ValidateRequest="false" AutoEventWireup="true"

  2.CodeFile="Login.aspx.cs" Inherits="Login" %>
  
  Change this to,
  1.<%@ Page Language="C#" ValidateRequest="false" AutoEventWireup="true"

  2.CodeFile="Login.aspx.cs" Inherits="clsLogin" %>

Note how Inherits="Login" is changed to Inherits="clsLogin" above

This should solve your problem

Cause

Login is treated as a reserve word in ASP.Net. If you use it for your class name, it conflicts with existing ASP.Net Login class.