facebook-c#-sdk - w3toppers.com

Fans-only content in facebook with asp.net C# sdk

You get signed request when your web page is loaded within facebook canvas app; you should be able to parse signed request something similar to following: if (Request.Params[“signed_request”] != null) { string payload = Request.Params[“signed_request”].Split(‘.’)[1]; var encoding = new UTF8Encoding(); var decodedJson = payload.Replace(“=”, string.Empty).Replace(‘-‘, ‘+’).Replace(‘_’, “https://stackoverflow.com/”); var base64JsonArray = Convert.FromBase64String(decodedJson.PadRight(decodedJson.Length + (4 – decodedJson.Length … Read more

Is it possible to configure a Facebook app to be used across multiple domains?

Unfortunately, the September 30, 2011 blog post is worded in a misleading way. The relevant section is “Support for Multiple Domains in the Developer App.” Reading that paragraph, it would appear that there are no restrictions in terms of which domains can be lumped together under one application. However, when I tried adding a second … Read more

Get application id from user access token (or verify the source application for a token)

https://graph.facebook.com/app/?access_token=[user_access_token] This will return the app this token was generated for, you can compare that against your app’s id.

An attempt was made to access a socket in a way forbidden by its access permissions

If you’re getting the same error in Windows 8 development, it could be that you haven’t enabled access over Private Networks in your Package.appxmanifest file:

Deserializing JSON when sometimes array and sometimes object

A very detailed explanation on how to handle this case is available at “Using a Custom JsonConverter to fix bad JSON results”. To summarize, you can extend the default JSON.NET converter doing Annotate the property with the issue [JsonConverter(typeof(SingleValueArrayConverter<OrderItem>))] public List<OrderItem> items; Extend the converter to return a list of your desired type even for … Read more

How to click in imagelink in gridview and go to another gridview

If your image in the gridview as hyperlink you can bind the NavigationUrl with Imageid/student id as querystring to that imagelink with other page. And that page should contain the another gridview. In the pageload you can idnetify the querystring and bind the gridview on the basis of it. Hope this flow can help you. … Read more