Extaspnet Application Skills (III.)

Problem Description:

Mgzhenhong Netizen mentions such a question, and gives an example:

1. Web.config enables the forms authentication.

<authentication　mode="Forms">
　　<forms　name=".Test"　 loginUrl="~/Login.aspx"　timeout="20"　 protection="All"></forms>
</authentication>
<authorization>
　 　<deny　users="?"/>
</authorization>

2. Login page (login.aspx) Place a button, click the button to simulate login:

protected　void　Button1_Click(object　sender,　EventArgs　e)
{
　　　　 FormsAuthentication.SetAuthCookie("AccountID",　false);
　　　　PageContext.Redirect ("~/Default.aspx");
}

3. Place a button on the main page and delete the login credentials when Page_Load:

protected　void　Page_Load(object　sender,　EventArgs　e)
{
　　　　 FormsAuthentication.SignOut();
}
protected　void　Button1_Click(object　sender,　 EventArgs　e)
{
　　　　//　nothing
}

4. Click this button should jump to the login page, but because of the use of extaspnet error: