private bool IsAppUser(long uid, bool isAsync, IsAppUserCallback callback, Object state)
{
var parameterList = new Dictionary<string, string> { { "method", "facebook.users.isAppUser" } };
Utilities.AddOptionalParameter(parameterList, "uid", uid);
if (isAsync)
{
SendRequestAsync<users_isAppUser_response, bool>(parameterList, !string.IsNullOrEmpty(Session.SessionKey), new FacebookCallCompleted<bool>(callback), state);
return false;
}
var response = SendRequest<users_isAppUser_response>(parameterList, !string.IsNullOrEmpty(Session.SessionKey));
return response == null ? true : response.TypedValue;
}
/// <summary>
/// Returns whether the user (either the session user or user specified by UID) has authorized the calling application.
/// </summary>
/// <example>
/// <code>
/// private static void RunDemoAsync()
/// {
/// Api api = new Api(new DesktopSession(Constants.ApplicationKey, Constants.ApplicationSecret, Constants.ApplicationSecret, Constants.SessionKey));
/// api.Users.IsAppUserAsync(Constants.UserId, AsyncDemoCompleted, null);
/// }
///
/// private static void AsyncDemoCompleted(bool result, Object state, FacebookException e)
/// {
/// var actual = result;
/// }
/// </code>
/// </example>
/// <param name="uid">The user ID of the user who may have authorized the application. If this parameter is not specified, then it defaults to the session user. Note: This parameter applies only to Web applications. Facebook ignores this parameter if it is passed by a desktop application.</param>
/// <param name="callback">The AsyncCallback delegate</param>
/// <param name="state">An object containing state information for this asynchronous request</param>
/// <returns>Returns true or false.</returns>
public void IsAppUserAsync(long uid, IsAppUserCallback callback, Object state)
{
IsAppUser(uid, true, callback, state);
}
