How can I count my friends from Facebook in my asp.net web application?

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Hello friends,
I am developing an ASP.NET application. I implemented Facebook JavaScript API in my application, for connect with Facebook and get FB friend list of user. I had done this successfully.
Now, I want to count how many friends are invited by user. Is it possible with facebook API. User can select multiple friends and i want to count how many friends selected and invited by user, Invited friends Id is bonus if We can get.
Please don't forget that facebook changed its Oauth settings for security reasons.
I'm also trying to get ids values after Send Invitation button clicked and page post back to

C#

        if (Request.Form["ids"] != null)
            {
                span1.InnerHtml = "ids";
//put success code here..
            }
            else
            {
                span1.InnerHtml = "oops no id";
            }
          if (Page.PreviousPage != null)
            {
                span1.InnerHtml = "ids";
//put success code here..
            }
            else
            {
                span1.InnerHtml = "oops no id";
            }

but in this case program control always goes to else condition it means after page is post back form return null value.
Is there any way to get ids of invited friends.
Thanks.

Posted 23-Dec-11 22:52pm

NileshKRathod

Updated 25-Dec-11 18:09pm

v2

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[no name] 25-Dec-11 0:48am

Have you tried asking on the Facebook developers forum?

NileshKRathod 26-Dec-11 0:11am

No, Not yet
but I'll try it..
Thanks for your response.

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NileshKRathod · Accepted Answer · 2011-12-26T01:33:00

Ok finally I resolve this issue and get invited friends ids.. :)

Just make on change in your .js file where you put your facebook connect javascript code. Use Get or Request Method instead of Post Method in fb:request-form tag.

JavaScript

var fbhtml = "<fb:serverfbml width="\""" width_of_invitation_div="" xmlns:fb="#unknown"><script type=\"text/fbml\"><fb:fbml><fb:request-form action=" + window.location + " method="REQUEST" invite="true" type="" + type_of_fb_request_form + "" hold=" /><br mode="></fb:request-form></fb:fbml></script></fb:serverfbml>"

After invitation send to users selected friends you get ids[] in url.
you can get these ids through query string and split ids by comma(,) and store in array.
Enjoy FBConnect.