How to check whether Facebook is logged in, in C#, Asp.net or HTML

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I want to check whether any user is logged in to facebook using C#, Asp.net application, or else in html also its fine.

Here when I click on BUTTON (asp.net Button or Html button) I want to check whether facebook is logged in, and if logged in i want to redirect to new page, else display error message.

So can anyone help me to solve this problem?

Posted 28-May-14 19:21pm

Aboobakkar Siddeq D U

Updated 28-May-14 19:25pm

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ZurdoDev 29-May-14 7:16am

1. Read the facebook developer sdk documentation
2. Where are you stuck?

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Thakkar Vipul · Answer 1 · 2014-06-06T00:28:00

Solution 1

facebook provides the Sdk for that you can use that and get information about user

Posted 6-Jun-14 0:28am

Thakkar Vipul

**Nirav Prabtani** · Answer 2 · 2014-06-06T00:55:00

try to google there are About 29,80,000 results (0.30 seconds)

Getting Started with the Facebook SDK for .NET and ASP.NET[^]

Asp.net integrate Facebook login authentication to website[^]

Get user Facebook details in ASP.NET and C#[^]

C# Application Integration with Facebook & Twitter with oAuth[^]

Login with FaceBook account in ASP.Net Website[^]

ASP.net C# Code Behind creating a Facebook login button[^]

You can modify code and design according to your need there reference links only for your idea.. :)