Yahoo BBAuthen problem with authentication session?

Question

Dear all, I'm trying to use yahoo BBA with my web application, but I'm always get fail with yahoo authentication problem.

Here is my odd code:

YahooLogin.aspx.cs

protected void ImageButtonYahoo_Click(object sender, ImageClickEventArgs e)
{
    // Create an instance of Yahoo.Authentication  
    Yahoo.Authentication auth = new Authentication(strApplicationID, strSecret);
    // Redirect the user to the use sign-in page  
    Response.Redirect(auth.GetUserLogOnAddress().ToString());
}

And end-point url: BBAuth.cs

protected void Page_Load(object sender, EventArgs e) { bool success = false; // Retrieve this user's authentication object we've stored in the session state
Yahoo.Authentication auth = Session["Auth"] as Yahoo.Authentication;

    if (auth == null)
    {
        // We have a problem with the current session, abandon and retry  
        Session.Abandon();
        Response.Redirect("ErrorPage.aspx");
    }
    // Check if we are returning from login  
    if (Request.QueryString["token"] != null && Request.QueryString["token"].Length > 0)
    {
        // Make sure the call is valid  
        if (auth.IsValidSignedUrl(Request.Url) == true)
        {
            success = true;
            // Save the user token. It is valid for two weeks  
            auth.Token = Request.QueryString["token"];
        }
    }

    // Redirect if we succeeded  
    if (success == true)
    {
        Response.Redirect("Default.aspx");
    }
    else
    {
        Response.Redirect("SignInError.aspx");
    }
}

Response.Redirect("ErrorPage.aspx"); always execute, someone can tell me what is missing in my code.

Thanks, Nguyen

Answer 1

add this after auth.token ="-------------------"

auth.UpdateCredentials();

try this.