ASP.NET Forms 身份认证

登录：

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Message.Text = String.Format("你好，{0}", Context.User.Identity.Name);
}
protected void btnSignout_Click(object sender, EventArgs e)
{
FormsAuthentication.SignOut();
Response.Redirect("login.aspx");

}
}

退出：

public partial class login : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (Request.IsAuthenticated)
Response.Redirect("default.aspx");
}
protected void btnLogin_Click(Object sender, EventArgs e)
{
if (txtUsername.Text != null && txtUsername.Text != String.Empty && txtPassword.Text != null && txtPassword.Text != String.Empty)
FormsAuthentication.RedirectFromLoginPage(txtUsername.Text, true);
else
lblError.Text = "错误的用户名/密码";
}
}