This article demonstrates how to post content (status, image, video, URL) to a user's Facebook wall using ASP.Net. Since I was thinking of implementing this feature in my current project, I found something cool and decided to share it with C# Corner readers.
Getting Started
First of all create a new website in ASP.Net using C#. And now login into Facebook and click on the developer link and create a new app and supply an app name and click "Continue".
![img1.jpg]()
Image1.
Now supply the captcha code in the TextBox and click "Continue".
![img2.jpg]()
Image 2.
As you can see, there is an AppID and App Secret. You must use these so copy them. And supply the site URL and click "Save changes".
![img3.jpg]()
Image 3.
Now let's start working on the UI. In this sample I will explain two ways to post a feed.
First scenario
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js" type="text/javascript"></script>
<div id="fb-root">
</div>
<script>
window.fbAsyncInit = function () {
FB.init({ appId: '491677990891136', status: true, cookie: true,
xfbml: true
});
};
(function () {
var e = document.createElement('script'); e.async = true;
e.src = document.location.protocol +
'//connect.facebook.net/en_US/all.js';
document.getElementById('fb-root').appendChild(e);
} ());
</script>
<script type="text/javascript">
$(document).ready(function () {
$('#share_button').click(function (e) {
e.preventDefault();
FB.ui(
{
method: 'feed',
name: 'jQuery Dialog',
link: 'http://www.c-sharpcorner.com/authors/raj1979/raj-kumar.aspx',
picture: 'http://www.c-sharpcorner.com/UploadFile/AuthorImage/raj1979.gif',
caption: 'This article demonstrates how to use the jQuery dialog feature in ASP.Net.',
description: 'First of all make a new website in ASP.Net and add a new stylesheet and add .js files and put images in the images folder and make a reference to the page.',
message: 'hello raj message'
});
});
});
</script>
<div>
<input type="button" id="share_button" value="Share" />
</div>
Run application
![img4.jpg]()
Image 4.
Type a message and click "Share".
![img5.jpg]()
Image 5.
Login to Facebook and see wall posts.
Second scenario
Add the Facebook client assembly in the bin folder and work on the code behind.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.IO;
using Facebook;
public partial class Default2 : System.Web.UI.Page
{
string bodymessage = "This is test message description new";
protected void Page_Load(object sender, EventArgs e)
{
CheckAuthorization();
}
private void CheckAuthorization()
{
string app_id = "APP_ID";
string app_secret = "APP_SECRET";
string scope = "publish_stream,manage_pages";
if (Request["code"] == null)
{
Response.Redirect(string.Format(
"https://graph.facebook.com/oauth/authorize?client_id={0}&redirect_uri={1}&scope={2}",
app_id, Request.Url.AbsoluteUri, scope));
}
else
{
Dictionary<string, string> tokens = new Dictionary<string, string>();
string url = string.Format("https://graph.facebook.com/oauth/access_token?client_id={0}&redirect_uri={1}&scope={2}&code={3}&client_secret={4}",
app_id, Request.Url.AbsoluteUri, scope, Request["code"].ToString(), app_secret);
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
StreamReader reader = new StreamReader(response.GetResponseStream());
string vals = reader.ReadToEnd();
foreach (string token in vals.Split('&'))
{
tokens.Add(token.Substring(0, token.IndexOf("=")),
token.Substring(token.IndexOf("=") + 1, token.Length - token.IndexOf("=") - 1));
}
}
string access_token = tokens["access_token"];
var client = new FacebookClient(access_token);
client.Post("/me/feed", new { message = bodymessage });
}
}
}
Run the application to see the result.
![img6.jpg]()
Image 6.