Question

I have developed one Facebook Application.
In facebook, page tab url I have specified a landing url, it is landing safely no issues.
Now I want if I click on like button, it should call another landing page.

What can be best solution for this ?

Answer 1

What you will have to do is read the signed_request passed to your tab application.

The signed_request will contain information on whether or not the current user “liked” the page that the app is on. Once you know if the user “liked” the page or not, in the even that s/he has already liked the page, you can redirect them to whatever URL you wish.

I see you have specified asp.net of which I have no knowledge, but I can tell you that the signed_request is passed to your application as a POST request. From there you need to parse the signed request and then you can read it’s contents.

Here is a simple JavaScript redirect (in PHP) –

echo "<script language=javascript>";
echo "window.location.href ='".$url."';";
echo "</script>";